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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.151 by root, Mon Jan 8 20:59:15 2007 UTC vs.
Revision 1.624 by root, Sat Nov 17 23:40:02 2018 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2018 Marc Alexander Lehmann / the Deliantra team
		5	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		6	#
		7	# Deliantra is free software: you can redistribute it and/or modify it under
		8	# the terms of the Affero GNU General Public License as published by the
		9	# Free Software Foundation, either version 3 of the License, or (at your
		10	# option) any later version.
		11	#
		12	# This program is distributed in the hope that it will be useful,
		13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15	# GNU General Public License for more details.
		16	#
		17	# You should have received a copy of the Affero GNU General Public License
		18	# and the GNU General Public License along with this program. If not, see
		19	# <http://www.gnu.org/licenses/>.
		20	#
		21	# The authors can be reached via e-mail to <support@deliantra.net>
		22	#
		23
1	package cf;	24	package cf;
2		25
3	use utf8;	26	use common::sense;
4	use strict;
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
		36	use Carp ();
12		37
		38	use AnyEvent ();
		39	use AnyEvent::IO ();
		40	use AnyEvent::DNS ();
		41
13	use Coro 3.3 ();	42	use Coro ();
		43	use Coro::State;
		44	use Coro::Handle;
		45	use Coro::EV;
14	use Coro::Event;	46	use Coro::AnyEvent;
15	use Coro::Timer;	47	use Coro::Timer;
16	use Coro::Signal;	48	use Coro::Signal;
17	use Coro::Semaphore;	49	use Coro::Semaphore;
		50	use Coro::SemaphoreSet;
		51	use Coro::AnyEvent;
18	use Coro::AIO;	52	use Coro::AIO;
		53	use Coro::BDB 1.6;
		54	use Coro::Storable;
		55	use Coro::Util ();
19		56
20	use Digest::MD5;	57	use Guard ();
		58	use JSON::XS 2.01 ();
		59	use BDB ();
		60	use Data::Dumper;
21	use Fcntl;	61	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	62	use YAML::XS ();
24	use Time::HiRes;	63	use CBOR::XS ();
		64	use IO::AIO ();
		65	use Compress::LZF;
		66	use Digest::MD5 ();
25		67
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	68	AnyEvent::detect;
27		69
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	70	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	71	#
		72	$Storable::canonical = 1; # reduce rsync transfers
		73	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		74
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	75	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		76
		77	# make sure c-lzf reinitialises itself
		78	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		79	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		80
		81	# strictly for debugging
		82	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		83
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	84	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		85
		86	our @ORIG_INC;
34		87
35	our %COMMAND = ();	88	our %COMMAND = ();
36	our %COMMAND_TIME = ();	89	our %COMMAND_TIME = ();
		90
		91	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	92	our %EXTCMD = ();
		93	our %EXTACMD = ();
		94	our %EXTICMD = ();
		95	our %EXTIACMD = ();
		96	our %EXT_CORO = (); # coroutines bound to extensions
		97	our %EXT_MAP = (); # pluggable maps
38		98
		99	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	100	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	101	our @REFLECT; # set by XS
		102	our %REFLECT; # set by us
41		103
42	our $TICK = MAX_TIME * 1e-6;	104	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	105
		106	our $DATADIR = datadir;
		107	our $LIBDIR = "$DATADIR/ext";
		108	our $PODDIR = "$DATADIR/pod";
		109	our $MAPDIR = "$DATADIR/" . mapdir;
		110
		111	our $LOCALDIR = localdir;
		112	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		113	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		114	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		115	our $RANDOMDIR = "$LOCALDIR/random";
		116	our $BDBDIR = "$LOCALDIR/db";
		117	our $PIDFILE = "$LOCALDIR/pid";
		118	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		119
		120	#our %RESOURCE; # unused
		121
		122	our $OUTPUT_RATE_MIN = 3000;
		123	our $OUTPUT_RATE_MAX = 1000000;
		124
		125	our $MAX_LINKS = 32; # how many chained exits to follow
		126	our $VERBOSE_IO = 1;
		127
		128	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		129	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	130	our $NEXT_TICK;
		131	our $USE_FSYNC = 1; # use fsync to write maps - default on
		132
		133	our $BDB_DEADLOCK_WATCHER;
		134	our $BDB_CHECKPOINT_WATCHER;
		135	our $BDB_TRICKLE_WATCHER;
		136	our $DB_ENV;
		137
		138	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		139
		140	our %CFG;
		141	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		142
		143	our $UPTIME; $UPTIME ||= time;
		144	our $RUNTIME = 0;
		145	our $SERVER_TICK = 0;
45	our $NOW;	146	our $NOW;
46		147
47	our %CFG;	148	our (%PLAYER, %PLAYER_LOADING); # all users
		149	our (%MAP, %MAP_LOADING ); # all maps
		150	our $LINK_MAP; # the special {link} map, which is always available
48		151
49	our $UPTIME; $UPTIME ||= time;	152	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	153	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		154
52	our %PLAYER; # all users	155	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our %MAP; # all maps	156	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $LINK_MAP; # the special {link} map	157	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	158	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO; # coroutines bound to extensions	159
		160	our @POST_INIT;
		161
		162	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		163	our $REALLY_UNLOOP; # never set to true, please :)
		164
		165	our $WAIT_FOR_TICK = new Coro::Signal;
		166	our @WAIT_FOR_TICK_BEGIN;
57		167
58	binmode STDOUT;	168	binmode STDOUT;
59	binmode STDERR;	169	binmode STDERR;
60		170
61	# read virtual server time, if available	171	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	172	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	173	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	174	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	175	$RUNTIME = <$fh> + 0.;
66	}	176	}
67		177
68	mkdir cf::localdir;	178	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		179
74	# a special map that is always available	180	mkdir $_
75	our $LINK_MAP;	181	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		182
76	our $EMERGENCY_POSITION;	183	our $EMERGENCY_POSITION;
77		184
		185	sub cf::map::normalise;
		186
		187	sub in_main() {
		188	$Coro::current == $Coro::main
		189	}
		190
78	#############################################################################	191	#############################################################################
79		192
		193	%REFLECT = ();
		194	for (@REFLECT) {
		195	my $reflect = JSON::XS::decode_json $_;
		196	$REFLECT{$reflect->{class}} = $reflect;
		197	}
		198
		199	# this is decidedly evil
		200	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		201
		202	#############################################################################
		203
80	=head2 GLOBAL VARIABLES	204	=head2 GLOBAL VARIABLES
81		205
82	=over 4	206	=over 4
83		207
84	=item $cf::UPTIME	208	=item $cf::UPTIME
85		209
86	The timestamp of the server start (so not actually an uptime).	210	The timestamp of the server start (so not actually an "uptime").
		211
		212	=item $cf::SERVER_TICK
		213
		214	An unsigned integer that starts at zero when the server is started and is
		215	incremented on every tick.
		216
		217	=item $cf::NOW
		218
		219	The (real) time of the last (current) server tick - updated before and
		220	after tick processing, so this is useful only as a rough "what time is it
		221	now" estimate.
		222
		223	=item $cf::TICK
		224
		225	The interval between each server tick, in seconds.
87		226
88	=item $cf::RUNTIME	227	=item $cf::RUNTIME
89		228
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	229	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	230	every server tick.
92		231
93	=item $cf::LIBDIR	232	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		233	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		234	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		235
95	The perl library directory, where extensions and cf-specific modules can	236	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	237	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		238	unique-items directory, player file directory, random maps directory and
		239	database environment.
97		240
		241	=item $cf::LOADAVG
		242
		243	The current CPU load on the server (alpha-smoothed), as a value between 0
		244	(none) and 1 (overloaded), indicating how much time is spent on processing
		245	objects per tick. Healthy values are < 0.5.
		246
98	=item $cf::NOW	247	=item $cf::LOAD
99		248
100	The time of the last (current) server tick.	249	The raw value load value from the last tick.
101
102	=item $cf::TICK
103
104	The interval between server ticks, in seconds.
105		250
106	=item %cf::CFG	251	=item %cf::CFG
107		252
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	253	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	254	from wherever your confdir points to.
110		255
		256	=item cf::wait_for_tick, cf::wait_for_tick_begin
		257
		258	These are functions that inhibit the current coroutine one tick.
		259	cf::wait_for_tick_begin only returns directly I<after> the tick
		260	processing (and consequently, can only wake one thread per tick), while
		261	cf::wait_for_tick wakes up all waiters after tick processing.
		262
		263	Note that cf::wait_for_tick will immediately return when the server is not
		264	ticking, making it suitable for small pauses in threads that need to run
		265	when the server is paused. If that is not applicable (i.e. you I<really>
		266	want to wait, use C<$cf::WAIT_FOR_TICK>).
		267
		268	=item $cf::WAIT_FOR_TICK
		269
		270	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		271	variable contains a L<Coro::Signal> that is broadcats after every server
		272	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		273	next server tick.
		274
		275	=cut
		276
		277	sub wait_for_tick();
		278	sub wait_for_tick_begin();
		279
		280	=item @cf::INVOKE_RESULTS
		281
		282	This array contains the results of the last C<invoke ()> call. When
		283	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		284	that call.
		285
		286	=item %cf::REFLECT
		287
		288	Contains, for each (C++) class name, a hash reference with information
		289	about object members (methods, scalars, arrays and flags) and other
		290	metadata, which is useful for introspection.
		291
111	=back	292	=back
112		293
113	=cut	294	=cut
114		295
115	BEGIN {	296	sub error(@) { LOG llevError, join "", @_ }
116	*CORE::GLOBAL::warn = sub {	297	sub warn (@) { LOG llevWarn , join "", @_ }
		298	sub info (@) { LOG llevInfo , join "", @_ }
		299	sub debug(@) { LOG llevDebug, join "", @_ }
		300	sub trace(@) { LOG llevTrace, join "", @_ }
		301
		302	$Coro::State::WARNHOOK = sub {
117	my $msg = join "", @_;	303	my $msg = join "", @_;
118	utf8::encode $msg;
119		304
120	$msg .= "\n"	305	$msg .= "\n"
121	unless $msg =~ /\n$/;	306	unless $msg =~ /\n$/;
122		307
		308	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		309
123	LOG llevError, $msg;	310	LOG llevWarn, $msg;
124	};	311	};
125	}	312
		313	$Coro::State::DIEHOOK = sub {
		314	return unless $^S eq 0; # "eq", not "=="
		315
		316	error Carp::longmess $_[0];
		317
		318	if (in_main) {#d#
		319	error "DIEHOOK called in main context, Coro bug?\n";#d#
		320	return;#d#
		321	}#d#
		322
		323	# kill coroutine otherwise
		324	Coro::terminate
		325	};
126		326
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	327	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	328	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	329	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	330	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	331	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		332	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	333	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		334
134	# we bless all objects into (empty) derived classes to force a method lookup	335	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	336	# within the Safe compartment.
136	for my $pkg (qw(	337	for my $pkg (qw(
137	cf::global cf::attachable	338	cf::global cf::attachable
138	cf::object cf::object::player	339	cf::object cf::object::player
139	cf::client cf::player	340	cf::client cf::player
140	cf::arch cf::living	341	cf::arch cf::living
		342	cf::map cf::mapspace
141	cf::map cf::party cf::region	343	cf::party cf::region
142	)) {	344	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	345	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	346	}
146		347
147	$Event::DIED = sub {	348	$EV::DIED = sub {
148	warn "error in event callback: @_";	349	warn "error in event callback: $@";
149	};	350	};
150		351
151	my %ext_pkg;	352	#############################################################################
152	my @exts;	353
153	my @hook;	354	sub fork_call(&@);
		355	sub get_slot($;$$);
		356
		357	#############################################################################
154		358
155	=head2 UTILITY FUNCTIONS	359	=head2 UTILITY FUNCTIONS
156		360
157	=over 4	361	=over 4
158		362
159	=cut	363	=item dumpval $ref
160		364
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	365	=cut
162		366
		367	sub dumpval {
		368	eval {
		369	local $SIG{__DIE__};
		370	my $d;
		371	if (1) {
		372	$d = new Data::Dumper([$_[0]], ["*var"]);
		373	$d->Terse(1);
		374	$d->Indent(2);
		375	$d->Quotekeys(0);
		376	$d->Useqq(1);
		377	#$d->Bless(...);
		378	$d->Seen($_[1]) if @_ > 1;
		379	$d = $d->Dump();
		380	}
		381	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		382	$d
		383	} || "[unable to dump $_[0]: '$@']";
		384	}
		385
		386	=item $scalar = cf::load_file $path
		387
		388	Loads the given file from path and returns its contents. Croaks on error
		389	and can block.
		390
		391	=cut
		392
		393	sub load_file($) {
		394	0 <= aio_load $_[0], my $data
		395	or Carp::croak "$_[0]: $!";
		396
		397	$data
		398	}
		399
		400	=item $success = cf::replace_file $path, $data, $sync
		401
		402	Atomically replaces the file at the given $path with new $data, and
		403	optionally $sync the data to disk before replacing the file.
		404
		405	=cut
		406
		407	sub replace_file($$;$) {
		408	my ($path, $data, $sync) = @_;
		409
		410	my $lock = cf::lock_acquire ("replace_file:$path");
		411
		412	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		413	or return;
		414
		415	$data = $data->() if ref $data;
		416
		417	length $data == aio_write $fh, 0, (length $data), $data, 0
		418	or return;
		419
		420	!$sync
		421	or !aio_fsync $fh
		422	or return;
		423
		424	aio_close $fh
		425	and return;
		426
		427	aio_rename "$path~", $path
		428	and return;
		429
		430	if ($sync) {
		431	$path =~ s%/[^/]*$%%;
		432	aio_pathsync $path;
		433	}
		434
		435	1
		436	}
		437
163	=item $ref = cf::from_json $json	438	=item $ref = cf::decode_json $json
164		439
165	Converts a JSON string into the corresponding perl data structure.	440	Converts a JSON string into the corresponding perl data structure.
166		441
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	442	=item $json = cf::encode_json $ref
175		443
176	Converts a perl data structure into its JSON representation.	444	Converts a perl data structure into its JSON representation.
177		445
178	=cut	446	=cut
179		447
180	sub to_json($) {	448	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	449
182	JSON::Syck::Dump $_[0]	450	sub encode_json($) { $json_coder->encode ($_[0]) }
		451	sub decode_json($) { $json_coder->decode ($_[0]) }
		452
		453	=item $ref = cf::decode_storable $scalar
		454
		455	Same as Coro::Storable::thaw, so blocks.
		456
		457	=cut
		458
		459	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		460
		461	=item $ref = cf::decode_yaml $scalar
		462
		463	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		464
		465	=cut
		466
		467	sub decode_yaml($) {
		468	fork_call { YAML::XS::Load $_[0] } @_
		469	}
		470
		471	=item $scalar = cf::decode_cbor $scalar
		472
		473	Same as CBOR::XS::decode_cbor, but takes server ticks into account, so
		474	blocks. For small amounts of data, C<CBOR::XS::decode_cbor> is the better
		475	alternative.
		476
		477	=cut
		478
		479	sub decode_cbor($) {
		480	# we assume 10mb/s minimum decoding speed (on a ~2ghz machine)
		481	cf::get_slot +(length $_[0]) / 10_000_000, 0, "decode_cbor";
		482	CBOR::XS::decode_cbor $_[0]
		483	}
		484
		485	=item $scalar = cf::unlzf $scalar
		486
		487	Same as Compress::LZF::compress, but takes server ticks into account, so
		488	blocks.
		489
		490	=cut
		491
		492	sub unlzf($) {
		493	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		494	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		495	Compress::LZF::decompress $_[0]
		496	}
		497
		498	=item cf::post_init { BLOCK }
		499
		500	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		501	but I<before> the server starts ticking again.
		502
		503	The codeblock will have a single boolean argument to indicate whether this
		504	is a reload or not.
		505
		506	=cut
		507
		508	sub post_init(&) {
		509	push @POST_INIT, shift;
		510	}
		511
		512	sub _post_init {
		513	trace "running post_init jobs";
		514
		515	# run them in parallel...
		516
		517	my @join;
		518
		519	while () {
		520	push @join, map &Coro::async ($_, 0), @POST_INIT;
		521	@POST_INIT = ();
		522
		523	@join or last;
		524
		525	(pop @join)->join;
		526	}
183	}	527	}
184		528
185	=item cf::lock_wait $string	529	=item cf::lock_wait $string
186		530
187	Wait until the given lock is available. See cf::lock_acquire.	531	Wait until the given lock is available. See cf::lock_acquire.
188		532
189	=item my $lock = cf::lock_acquire $string	533	=item my $lock = cf::lock_acquire $string
190		534
191	Wait until the given lock is available and then acquires it and returns	535	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	536	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	537	for example when the coroutine gets canceled), the lock is automatically
194	returned.	538	returned.
195		539
		540	Locks are *not* recursive, locking from the same coro twice results in a
		541	deadlocked coro.
		542
196	Lock names should begin with a unique identifier (for example, cf::map::find	543	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	544	uses map_find and cf::map::load uses map_load).
198		545
199	=cut	546	=item $locked = cf::lock_active $string
200		547
201	our %LOCK;	548	Return true if the lock is currently active, i.e. somebody has locked it.
		549
		550	=cut
		551
		552	our $LOCKS = new Coro::SemaphoreSet;
202		553
203	sub lock_wait($) {	554	sub lock_wait($) {
204	my ($key) = @_;	555	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	556	}
212		557
213	sub lock_acquire($) {	558	sub lock_acquire($) {
214	my ($key) = @_;	559	$LOCKS->guard ($_[0])
		560	}
215		561
216	# wait, to be sure we are not locked	562	sub lock_active($) {
217	lock_wait $key;	563	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	564	}
226		565
227	sub freeze_mainloop {	566	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	567	tick_inhibit_inc;
229		568
230	my $guard = Coro::guard { $TICK_WATCHER->start };	569	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	570	}
232	$guard	571
		572	=item cf::periodic $interval, $cb
		573
		574	Like EV::periodic, but randomly selects a starting point so that the actions
		575	get spread over time.
		576
		577	=cut
		578
		579	sub periodic($$) {
		580	my ($interval, $cb) = @_;
		581
		582	my $start = rand List::Util::min 180, $interval;
		583
		584	EV::periodic $start, $interval, 0, $cb
		585	}
		586
		587	=item cf::get_slot $time[, $priority[, $name]]
		588
		589	Allocate $time seconds of blocking CPU time at priority C<$priority>
		590	(default: 0): This call blocks and returns only when you have at least
		591	C<$time> seconds of cpu time till the next tick. The slot is only valid
		592	till the next cede.
		593
		594	Background jobs should use a priority less than zero, interactive jobs
		595	should use 100 or more.
		596
		597	The optional C<$name> can be used to identify the job to run. It might be
		598	used for statistical purposes and should identify the same time-class.
		599
		600	Useful for short background jobs.
		601
		602	=cut
		603
		604	our @SLOT_QUEUE;
		605	our $SLOT_QUEUE;
		606	our $SLOT_DECAY = 0.9;
		607
		608	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		609	$SLOT_QUEUE = Coro::async {
		610	$Coro::current->desc ("timeslot manager");
		611
		612	my $signal = new Coro::Signal;
		613	my $busy;
		614
		615	while () {
		616	next_job:
		617
		618	Coro::cede;
		619
		620	my $avail = cf::till_tick;
		621
		622	for (0 .. $#SLOT_QUEUE) {
		623	if ($SLOT_QUEUE[$_][0] <= $avail) {
		624	$busy = 0;
		625	my $job = splice @SLOT_QUEUE, $_, 1, ();
		626	$job->[2]->send;
		627	goto next_job;
		628	} else {
		629	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		630	}
		631	}
		632
		633	if (@SLOT_QUEUE) {
		634	wait_for_tick;
		635	} else {
		636	$busy = 0;
		637	Coro::schedule;
		638	}
		639	}
		640	};
		641
		642	sub get_slot($;$$) {
		643	return if tick_inhibit || $Coro::current == $Coro::main;
		644
		645	my ($time, $pri, $name) = @_;
		646
		647	$time = clamp $time, 0.01, $TICK * .6;
		648
		649	my $sig = new Coro::Signal;
		650
		651	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		652	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		653	$SLOT_QUEUE->ready;
		654	$sig->wait;
233	}	655	}
234		656
235	=item cf::async { BLOCK }	657	=item cf::async { BLOCK }
236		658
237	Currently the same as Coro::async_pool, meaning you cannot use	659	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		664
243	BEGIN { *async = \&Coro::async_pool }	665	BEGIN { *async = \&Coro::async_pool }
244		666
245	=item cf::sync_job { BLOCK }	667	=item cf::sync_job { BLOCK }
246		668
247	The design of crossfire+ requires that the main coro ($Coro::main) is	669	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	670	is always able to handle events or is runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	671	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		672	acceptable.
250		673
251	If it must be done, put the blocking parts into C<sync_job>. This will run	674	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	675	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	676	server will be frozen during this time, so the block should either finish
254	fast or be very important.	677	fast or be very important.
…		…
256	=cut	679	=cut
257		680
258	sub sync_job(&) {	681	sub sync_job(&) {
259	my ($job) = @_;	682	my ($job) = @_;
260		683
261	if ($Coro::current == $Coro::main) {	684	if (in_main) {
		685	my $time = AE::time;
		686
262	# this is the main coro, too bad, we have to block	687	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	688	# till the operation succeeds, freezing the server :/
264		689
265	# TODO: use suspend/resume instead	690	#LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	691
267	my $freeze_guard = freeze_mainloop;	692	my $freeze_guard = freeze_mainloop;
268		693
269	my $busy = 1;	694	my $busy = 1;
270	my @res;	695	my @res;
271		696
272	(async {	697	(async {
		698	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	699	@res = eval { $job->() };
274	warn $@ if $@;	700	error $@ if $@;
275	undef $busy;	701	undef $busy;
276	})->prio (Coro::PRIO_MAX);	702	})->prio (Coro::PRIO_MAX);
277		703
278	while ($busy) {	704	while ($busy) {
279	Coro::cede or Event::one_event;	705	if (Coro::nready) {
		706	Coro::cede_notself;
		707	} else {
		708	EV::run EV::RUN_ONCE;
280	}	709	}
		710	}
		711
		712	my $time = AE::time - $time;
		713
		714	$TICK_START += $time; # do not account sync jobs to server load
281		715
282	wantarray ? @res : $res[0]	716	wantarray ? @res : $res[0]
283	} else {	717	} else {
284	# we are in another coroutine, how wonderful, everything just works	718	# we are in another coroutine, how wonderful, everything just works
285		719
…		…
287	}	721	}
288	}	722	}
289		723
290	=item $coro = cf::async_ext { BLOCK }	724	=item $coro = cf::async_ext { BLOCK }
291		725
292	Like async, but this coro is automcatially being canceled when the	726	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	727	extension calling this is being unloaded.
294		728
295	=cut	729	=cut
296		730
297	sub async_ext(&) {	731	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	739	$EXT_CORO{$coro+0} = $coro;
306		740
307	$coro	741	$coro
308	}	742	}
309		743
310	sub write_runtime {	744	=item fork_call { }, @args
311	my $runtime = cf::localdir . "/runtime";
312		745
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	746	Executes the given code block with the given arguments in a seperate
314	or return;	747	process, returning the results. Everything must be serialisable with
		748	Coro::Storable. May, of course, block. Note that the executed sub may
		749	never block itself or use any form of event handling.
315		750
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	751	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		752
320	aio_fsync $fh	753	sub post_fork {
321	and return;	754	reset_signals;
		755	}
322		756
323	close $fh	757	sub fork_call(&@) {
324	or return;	758	my ($cb, @args) = @_;
325		759
326	aio_rename "$runtime~", $runtime	760	my @res = Coro::Util::fork_eval {
327	and return;	761	cf::post_fork;
		762	&$cb
		763	} @args;
328		764
		765	wantarray ? @res : $res[-1]
		766	}
		767
		768	sub objinfo {
329	1	769	(
		770	"counter value" => cf::object::object_count,
		771	"objects created" => cf::object::create_count,
		772	"objects destroyed" => cf::object::destroy_count,
		773	"freelist size" => cf::object::free_count,
		774	"allocated objects" => cf::object::objects_size,
		775	"active objects" => cf::object::actives_size,
		776	)
		777	}
		778
		779	=item $coin = coin_from_name $name
		780
		781	=cut
		782
		783	our %coin_alias = (
		784	"silver" => "silvercoin",
		785	"silvercoin" => "silvercoin",
		786	"silvercoins" => "silvercoin",
		787	"gold" => "goldcoin",
		788	"goldcoin" => "goldcoin",
		789	"goldcoins" => "goldcoin",
		790	"platinum" => "platinacoin",
		791	"platinumcoin" => "platinacoin",
		792	"platinumcoins" => "platinacoin",
		793	"platina" => "platinacoin",
		794	"platinacoin" => "platinacoin",
		795	"platinacoins" => "platinacoin",
		796	"royalty" => "royalty",
		797	"royalties" => "royalty",
		798	);
		799
		800	sub coin_from_name($) {
		801	$coin_alias{$_[0]}
		802	? cf::arch::find $coin_alias{$_[0]}
		803	: undef
		804	}
		805
		806	=item $value = cf::db_get $family => $key
		807
		808	Returns a single value from the environment database.
		809
		810	=item cf::db_put $family => $key => $value
		811
		812	Stores the given C<$value> in the family. It can currently store binary
		813	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		814
		815	=item $db = cf::db_table "name"
		816
		817	Create and/or open a new database table. The string must not be "db" and must be unique
		818	within each server.
		819
		820	=cut
		821
		822	sub db_table($) {
		823	cf::error "db_get called from main context"
		824	if $Coro::current == $Coro::main;
		825
		826	my ($name) = @_;
		827	my $db = BDB::db_create $DB_ENV;
		828
		829	eval {
		830	$db->set_flags (BDB::CHKSUM);
		831
		832	utf8::encode $name;
		833	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		834	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		835	cf::cleanup "db_open(db): $!" if $!;
		836	};
		837	cf::cleanup "db_open(db): $@" if $@;
		838
		839	$db
		840	}
		841
		842	our $DB;
		843
		844	sub db_init {
		845	$DB ||= db_table "db";
		846	}
		847
		848	sub db_get($$) {
		849	my $key = "$_[0]/$_[1]";
		850
		851	cf::error "db_get called from main context"
		852	if $Coro::current == $Coro::main;
		853
		854	BDB::db_get $DB, undef, $key, my $data;
		855
		856	$! ? ()
		857	: $data
		858	}
		859
		860	sub db_put($$$) {
		861	BDB::dbreq_pri 4;
		862	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		863	}
		864
		865	=item cf::cache $id => [$paths...], $processversion => $process
		866
		867	Generic caching function that returns the value of the resource $id,
		868	caching and regenerating as required.
		869
		870	This function can block.
		871
		872	=cut
		873
		874	sub cache {
		875	my ($id, $src, $processversion, $process) = @_;
		876
		877	my $meta =
		878	join "\x00",
		879	$processversion,
		880	map {
		881	aio_stat $_
		882	and Carp::croak "$_: $!";
		883
		884	($_, (stat _)[7,9])
		885	} @$src;
		886
		887	my $dbmeta = db_get cache => "$id/meta";
		888	if ($dbmeta ne $meta) {
		889	# changed, we may need to process
		890
		891	my @data;
		892	my $md5;
		893
		894	for (0 .. $#$src) {
		895	$data[$_] = load_file $src->[$_];
		896	}
		897
		898	# if processing is expensive, check
		899	# checksum first
		900	if (1) {
		901	$md5 =
		902	join "\x00",
		903	$processversion,
		904	map {
		905	cf::cede_to_tick;
		906	($src->[$_], Digest::MD5::md5_hex $data[$_])
		907	} 0.. $#$src;
		908
		909
		910	my $dbmd5 = db_get cache => "$id/md5";
		911	if ($dbmd5 eq $md5) {
		912	db_put cache => "$id/meta", $meta;
		913
		914	return db_get cache => "$id/data";
		915	}
		916	}
		917
		918	my $t1 = EV::time;
		919	my $data = $process->(\@data);
		920	my $t2 = EV::time;
		921
		922	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		923
		924	db_put cache => "$id/data", $data;
		925	db_put cache => "$id/md5" , $md5;
		926	db_put cache => "$id/meta", $meta;
		927
		928	return $data;
		929	}
		930
		931	db_get cache => "$id/data"
		932	}
		933
		934	=item cf::datalog type => key => value, ...
		935
		936	Log a datalog packet of the given type with the given key-value pairs.
		937
		938	=cut
		939
		940	sub datalog($@) {
		941	my ($type, %kv) = @_;
		942	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	943	}
331		944
332	=back	945	=back
333		946
334	=cut	947	=cut
335		948
336	#############################################################################	949	#############################################################################
337		950
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	951	=head2 ATTACHABLE OBJECTS
459		952
460	Many objects in crossfire are so-called attachable objects. That means you can	953	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	954	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	955	to it. All such attachable objects support the following methods.
463		956
464	In the following description, CLASS can be any of C<global>, C<object>	957	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	958	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	959	Deliantra).
467		960
468	=over 4	961	=over 4
469		962
470	=item $attachable->attach ($attachment, key => $value...)	963	=item $attachable->attach ($attachment, key => $value...)
471		964
…		…
515	=item cf::CLASS::attachment $name, ...	1008	=item cf::CLASS::attachment $name, ...
516		1009
517	Register an attachment by C<$name> through which attachable objects of the	1010	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	1011	given CLASS can refer to this attachment.
519		1012
520	Some classes such as crossfire maps and objects can specify attachments	1013	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	1014	that are attached at load/instantiate time, thus the need for a name.
522		1015
523	These calls expect any number of the following handler/hook descriptions:	1016	These calls expect any number of the following handler/hook descriptions:
524		1017
525	=over 4	1018	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	1078	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	1079	our @CB_MAP = ();
587		1080
588	my %attachment;	1081	my %attachment;
589		1082
		1083	sub cf::attachable::thawer_merge {
		1084	# simply override everything except _meta
		1085	local $_[0]{_meta};
		1086	%{$_[0]} = %{$_[1]};
		1087	}
		1088
590	sub _attach_cb($$$$) {	1089	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	1090	my ($registry, $event, $prio, $cb) = @_;
592		1091
593	use sort 'stable';	1092	use sort 'stable';
594		1093
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	1127	$registry = $CB_TYPE[$object_type] ||= [];
629		1128
630	} elsif ($type eq "subtype") {	1129	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	1130	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	1131	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1132	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		1133
635	} elsif ($type eq "package") {	1134	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	1135	my $pkg = shift @arg;
637		1136
638	while (my ($name, $id) = each %cb_id) {	1137	while (my ($name, $id) = each %cb_id) {
…		…
643		1142
644	} elsif (exists $cb_id{$type}) {	1143	} elsif (exists $cb_id{$type}) {
645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1144	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
646		1145
647	} elsif (ref $type) {	1146	} elsif (ref $type) {
648	warn "attaching objects not supported, ignoring.\n";	1147	error "attaching objects not supported, ignoring.\n";
649		1148
650	} else {	1149	} else {
651	shift @arg;	1150	shift @arg;
652	warn "attach argument '$type' not supported, ignoring.\n";	1151	error "attach argument '$type' not supported, ignoring.\n";
653	}	1152	}
654	}	1153	}
655	}	1154	}
656		1155
657	sub _object_attach {	1156	sub _object_attach {
…		…
667	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
668	}	1167	}
669		1168
670	$obj->{$name} = \%arg;	1169	$obj->{$name} = \%arg;
671	} else {	1170	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1171	info "object uses attachment '$name' which is not available, postponing.\n";
673	}	1172	}
674		1173
675	$obj->{_attachment}{$name} = undef;	1174	$obj->{_attachment}{$name} = undef;
676	}	1175	}
677		1176
…		…
679	if (ref $_[0]) {	1178	if (ref $_[0]) {
680	_object_attach @_;	1179	_object_attach @_;
681	} else {	1180	} else {
682	_attach shift->_attach_registry, @_;	1181	_attach shift->_attach_registry, @_;
683	}	1182	}
		1183	_recalc_want;
684	};	1184	};
685		1185
686	# all those should be optimised	1186	# all those should be optimised
687	sub cf::attachable::detach {	1187	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1191	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1192	reattach ($obj);
693	} else {	1193	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1194	Carp::croak "cannot, currently, detach class attachments";
695	}	1195	}
		1196	_recalc_want;
696	};	1197	};
697		1198
698	sub cf::attachable::attached {	1199	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1200	my ($obj, $name) = @_;
700		1201
…		…
715	";	1216	";
716	die if $@;	1217	die if $@;
717	}	1218	}
718		1219
719	our $override;	1220	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1221	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1222
722	sub override {	1223	sub override {
723	$override = 1;	1224	$override = 1;
724	@invoke_results = ();	1225	@INVOKE_RESULTS = (@_);
725	}	1226	}
726		1227
727	sub do_invoke {	1228	sub do_invoke {
728	my $event = shift;	1229	my $event = shift;
729	my $callbacks = shift;	1230	my $callbacks = shift;
730		1231
731	@invoke_results = ();	1232	@INVOKE_RESULTS = ();
732		1233
733	local $override;	1234	local $override;
734		1235
735	for (@$callbacks) {	1236	for (@$callbacks) {
736	eval { &{$_->[1]} };	1237	eval { &{$_->[1]} };
737		1238
738	if ($@) {	1239	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1240	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1241	override;
742	}	1242	}
743		1243
744	return 1 if $override;	1244	return 1 if $override;
745	}	1245	}
746		1246
747	0	1247	0
748	}	1248	}
749		1249
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1250	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1251
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1252	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1253
754	Generate an object-specific event with the given arguments.	1254	Generate an object-specific event with the given arguments.
755		1255
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1256	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1257	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1258	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1259
760	=back	1260	=back
761		1261
762	=cut	1262	=cut
763		1263
764	#############################################################################	1264	#############################################################################
765	# object support	1265	# object support
		1266
		1267	sub _object_equal($$);
		1268	sub _object_equal($$) {
		1269	my ($a, $b) = @_;
		1270
		1271	return 0 unless (ref $a) eq (ref $b);
		1272
		1273	if ("HASH" eq ref $a) {
		1274	my @ka = keys %$a;
		1275	my @kb = keys %$b;
		1276
		1277	return 0 if @ka != @kb;
		1278
		1279	for (0 .. $#ka) {
		1280	return 0 unless $ka[$_] eq $kb[$_];
		1281	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1282	}
		1283
		1284	} elsif ("ARRAY" eq ref $a) {
		1285
		1286	return 0 if @$a != @$b;
		1287
		1288	for (0 .. $#$a) {
		1289	return 0 unless _object_equal $a->[$_], $b->[$_];
		1290	}
		1291
		1292	} elsif ($a ne $b) {
		1293	return 0;
		1294	}
		1295
		1296	1
		1297	}
		1298
		1299	our $SLOW_MERGES;#d#
		1300	sub _can_merge {
		1301	my ($ob1, $ob2) = @_;
		1302
		1303	++$SLOW_MERGES;#d#
		1304
		1305	# we do the slow way here
		1306	return _object_equal $ob1, $ob2
		1307	}
766		1308
767	sub reattach {	1309	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1310	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1311	my ($obj) = @_;
		1312
		1313	# no longer needed after getting rid of delete_package?
		1314	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1315
771	my $registry = $obj->registry;	1316	my $registry = $obj->registry;
772		1317
773	@$registry = ();	1318	@$registry = ();
774		1319
…		…
779	for (@$attach) {	1324	for (@$attach) {
780	my ($klass, @attach) = @$_;	1325	my ($klass, @attach) = @$_;
781	_attach $registry, $klass, @attach;	1326	_attach $registry, $klass, @attach;
782	}	1327	}
783	} else {	1328	} else {
784	warn "object uses attachment '$name' that is not available, postponing.\n";	1329	info "object uses attachment '$name' that is not available, postponing.\n";
785	}	1330	}
786	}	1331	}
787	}	1332	}
788		1333
789	cf::attachable->attach (	1334	cf::attachable->attach (
790	prio => -1000000,	1335	prio => -1000000,
791	on_instantiate => sub {	1336	on_instantiate => sub {
792	my ($obj, $data) = @_;	1337	my ($obj, $data) = @_;
793		1338
794	$data = from_json $data;	1339	$data = decode_json $data;
795		1340
796	for (@$data) {	1341	for (@$data) {
797	my ($name, $args) = @$_;	1342	my ($name, $args) = @$_;
798		1343
799	$obj->attach ($name, %{$args || {} });	1344	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1360	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1361	my ($filename, $rdata, $objs) = @_;
817		1362
818	sync_job {	1363	sync_job {
819	if (length $$rdata) {	1364	if (length $$rdata) {
		1365	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1366	trace sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1367	$decname, length $$rdata, scalar @$objs
		1368	if $VERBOSE_IO;
822		1369
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1370	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1371	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1372	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1373	if ($cf::USE_FSYNC) {
		1374	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
826	aio_fsync $fh;	1375	aio_fsync $fh;
		1376	}
827	close $fh;	1377	aio_close $fh;
828		1378
829	if (@$objs) {	1379	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1380	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1381	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1382	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1383	aio_write $fh, 0, (length $data), $data, 0;
		1384	if ($cf::USE_FSYNC) {
		1385	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
834	aio_fsync $fh;	1386	aio_fsync $fh;
		1387	}
835	close $fh;	1388	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1389	aio_rename "$filename.pst~", "$filename.pst";
837	}	1390	}
838	} else {	1391	} else {
839	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
840	}	1393	}
841		1394
842	aio_rename "$filename~", $filename;	1395	aio_rename "$filename~", $filename;
		1396
		1397	$filename =~ s%/[^/]+$%%;
		1398	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1399	} else {
844	warn "FATAL: $filename~: $!\n";	1400	error "unable to save objects: $filename~: $!\n";
845	}	1401	}
846	} else {	1402	} else {
847	aio_unlink $filename;	1403	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1404	aio_unlink "$filename.pst";
849	}	1405	}
850	}	1406	};
851	}	1407	}
852		1408
853	sub object_freezer_as_string {	1409	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1410	my ($rdata, $objs) = @_;
855		1411
…		…
867	or return;	1423	or return;
868		1424
869	unless (aio_stat "$filename.pst") {	1425	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1426	(aio_load "$filename.pst", $av) >= 0
871	or return;	1427	or return;
		1428
872	$av = eval { (Storable::thaw $av)->{objs} };	1429	my $st = eval { Coro::Storable::thaw $av };
		1430	$av = $st->{objs};
873	}	1431	}
874		1432
		1433	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1434	trace sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1435	$decname, length $data, scalar @{$av || []}
		1436	if $VERBOSE_IO;
		1437
877	return ($data, $av);	1438	($data, $av)
878	}	1439	}
		1440
		1441	=head2 COMMAND CALLBACKS
		1442
		1443	=over 4
		1444
		1445	=cut
879		1446
880	#############################################################################	1447	#############################################################################
881	# command handling &c	1448	# command handling &c
882		1449
883	=item cf::register_command $name => \&callback($ob,$args);	1450	=item cf::register_command $name => \&callback($ob,$args)
884		1451
885	Register a callback for execution when the client sends the user command	1452	Register a callback for execution when the client sends the user command
886	$name.	1453	$name.
887		1454
888	=cut	1455	=cut
…		…
894	#warn "registering command '$name/$time' to '$caller'";	1461	#warn "registering command '$name/$time' to '$caller'";
895		1462
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1463	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1464	}
898		1465
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1466	=item cf::register_extcmd $name => \&callback($pl,@args)
900		1467
901	Register a callbackf ro execution when the client sends an extcmd packet.	1468	Register a callback for execution when the client sends an (synchronous)
		1469	extcmd packet. Ext commands will be processed in the order they are
		1470	received by the server, like other user commands. The first argument is
		1471	the logged-in player. Ext commands can only be processed after a player
		1472	has logged in successfully.
902		1473
903	If the callback returns something, it is sent back as if reply was being	1474	The values will be sent back to the client.
904	called.
905		1475
906	=cut	1476	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
907		1477
		1478	Same as C<cf::register_extcmd>, but instead of returning values, the
		1479	callback needs to clal the C<$reply> function.
		1480
		1481	=item cf::register_exticmd $name => \&callback($ns,@args)
		1482
		1483	Register a callback for execution when the client sends an (asynchronous)
		1484	exticmd packet. Exti commands are processed by the server as soon as they
		1485	are received, i.e. out of order w.r.t. other commands. The first argument
		1486	is a client socket. Exti commands can be received anytime, even before
		1487	log-in.
		1488
		1489	The values will be sent back to the client.
		1490
		1491	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1492
		1493	Same as C<cf::register_extcmd>, but instead of returning values, the
		1494	callback needs to clal the C<$reply> function.
		1495
		1496	=cut
		1497
908	sub register_extcmd {	1498	sub register_extcmd($$) {
909	my ($name, $cb) = @_;	1499	my ($name, $cb) = @_;
910		1500
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1501	$EXTCMD{$name} = $cb;
915	}	1502	}
		1503
		1504	sub register_async_extcmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTACMD{$name} = $cb;
		1508	}
		1509
		1510	sub register_exticmd($$) {
		1511	my ($name, $cb) = @_;
		1512
		1513	$EXTICMD{$name} = $cb;
		1514	}
		1515
		1516	sub register_async_exticmd($$) {
		1517	my ($name, $cb) = @_;
		1518
		1519	$EXTIACMD{$name} = $cb;
		1520	}
		1521
		1522	use File::Glob ();
916		1523
917	cf::player->attach (	1524	cf::player->attach (
918	on_command => sub {	1525	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1526	my ($pl, $name, $params) = @_;
920		1527
921	my $cb = $COMMAND{$name}	1528	my $cb = $COMMAND{$name}
922	or return;	1529	or return;
923		1530
…		…
928	cf::override;	1535	cf::override;
929	},	1536	},
930	on_extcmd => sub {	1537	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1538	my ($pl, $buf) = @_;
932		1539
933	my $msg = eval { from_json $buf };	1540	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1541
935	if (ref $msg) {	1542	if (ref $msg) {
		1543	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1544
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1545	if (my $cb = $EXTACMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1546	$cb->(
938	$pl->ext_reply ($msg->{msgid}, %reply);	1547	$pl,
		1548	sub {
		1549	$pl->ext_msg ("reply-$reply", @_)
		1550	if $reply;
		1551	},
		1552	@payload
		1553	);
		1554	} else {
		1555	my @reply;
		1556
		1557	if (my $cb = $EXTCMD{$type}) {
		1558	@reply = $cb->($pl, @payload);
939	}	1559	}
		1560
		1561	$pl->ext_msg ("reply-$reply", @reply)
		1562	if $reply;
940	}	1563	}
		1564
941	} else {	1565	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1566	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1567	}
944		1568
945	cf::override;	1569	cf::override;
946	},	1570	},
947	);	1571	);
948		1572
949	sub register {	1573	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1574	sub cache_extensions {
956	my ($path) = @_;	1575	my $grp = IO::AIO::aio_group;
957		1576
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1578	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1579	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1580	}
1008	}	1581	};
1009		1582
1010	# remove extcmds	1583	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1584	}
1012	delete $EXTCMD{$name};
1013	}
1014		1585
1015	if (my $cb = $pkg->can ("unload")) {	1586	sub _ext_cfg_reg($$$$) {
1016	eval {	1587	my ($rvar, $varname, $cfgname, $default) = @_;
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021		1588
1022	Symbol::delete_package $pkg;	1589	$cfgname = lc $varname
		1590	unless length $cfgname;
		1591
		1592	$EXT_CFG{$cfgname} = [$rvar, $default];
		1593
		1594	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1023	}	1595	}
1024		1596
1025	sub load_extensions {	1597	sub load_extensions {
		1598	info "loading extensions...";
		1599
		1600	%EXT_CFG = ();
		1601
		1602	cf::sync_job {
		1603	my %todo;
		1604
1026	for my $ext (<$LIBDIR/*.ext>) {	1605	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1606	next unless -r $path;
1028	eval {	1607
1029	load_extension $ext;	1608	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1609	my $base = $1;
		1610	my $pkg = $1;
		1611	$pkg =~ s/[^[:word:]]/_/g;
		1612	$pkg = "ext::$pkg";
		1613
		1614	open my $fh, "<:utf8", $path
		1615	or die "$path: $!";
		1616
		1617	my $source = do { local $/; <$fh> };
		1618
		1619	my %ext = (
		1620	path => $path,
		1621	base => $base,
		1622	pkg => $pkg,
		1623	);
		1624
		1625	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1626	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1627
		1628	$ext{source} =
		1629	"package $pkg; use common::sense;\n"
		1630	. "#line 1 \"$path\"\n{\n"
		1631	. $source
		1632	. "\n};\n1";
		1633
		1634	$todo{$base} = \%ext;
		1635	}
		1636
		1637	my $pass = 0;
		1638	my %done;
		1639	while (%todo) {
		1640	my $progress;
		1641
		1642	++$pass;
		1643
		1644	ext:
		1645	while (my ($k, $v) = each %todo) {
		1646	for (split /,\s*/, $v->{meta}{depends}) {
		1647	next ext
		1648	unless exists $done{$_};
		1649	}
		1650
		1651	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1652
		1653	my $source = $v->{source};
		1654
		1655	# support "CONF varname :confname = default" pseudo-statements
		1656	$source =~ s{
		1657	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1658	}{
		1659	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1660	}gmxe;
		1661
		1662	my $active = eval $source;
		1663
		1664	if (length $@) {
		1665	error "$v->{path}: $@\n";
		1666
		1667	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1668	if exists $v->{meta}{mandatory};
		1669
		1670	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1671	delete $todo{$k};
		1672	} else {
		1673	$done{$k} = delete $todo{$k};
		1674	push @EXTS, $v->{pkg};
		1675	$progress = 1;
		1676
		1677	info "$v->{base}: extension inactive.\n"
		1678	unless $active;
		1679	}
1030	1	1680	}
1031	} or warn "$ext not loaded: $@";	1681
		1682	unless ($progress) {
		1683	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1684
		1685	while (my ($k, $v) = each %todo) {
		1686	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1687	if exists $v->{meta}{mandatory};
		1688	}
		1689
		1690	last;
		1691	}
		1692	}
1032	}	1693	};
1033	}	1694	}
1034		1695
1035	#############################################################################	1696	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1697
1038	*cf::mapsupport::on_clean = sub {	1698	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1699
1073	=head2 CORE EXTENSIONS	1700	=head2 CORE EXTENSIONS
1074		1701
1075	Functions and methods that extend core crossfire objects.	1702	Functions and methods that extend core deliantra objects.
1076		1703
1077	=cut	1704	=cut
1078		1705
1079	package cf::player;	1706	package cf::player;
1080		1707
		1708	use Coro::AIO;
		1709
1081	=head3 cf::player	1710	=head3 cf::player
1082		1711
1083	=over 4	1712	=over 4
1084		1713
		1714	=item cf::player::num_playing
		1715
		1716	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1717
		1718	=cut
		1719
		1720	sub num_playing {
		1721	scalar grep
		1722	$_->ob->map
		1723	&& !$_->hidden
		1724	&& !$_->ob->flag (cf::FLAG_WIZ),
		1725	cf::player::list
		1726	}
		1727
1085	=item cf::player::find $login	1728	=item cf::player::find $login
1086		1729
1087	Returns the given player object, loading it if necessary (might block).	1730	Returns the given player object, loading it if necessary (might block).
1088		1731
1089	=cut	1732	=cut
1090		1733
1091	sub playerdir($) {	1734	sub playerdir($) {
1092	cf::localdir	1735	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1736	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1737	}
1098		1738
1099	sub path($) {	1739	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1740	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1741
1102	(playerdir $login) . "/$login.pl"	1742	(playerdir $login) . "/playerdata"
1103	}	1743	}
1104		1744
1105	sub find_active($) {	1745	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1746	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1747	and $cf::PLAYER{$_[0]}->active
…		…
1110		1750
1111	sub exists($) {	1751	sub exists($) {
1112	my ($login) = @_;	1752	my ($login) = @_;
1113		1753
1114	$cf::PLAYER{$login}	1754	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1755	or !aio_stat path $login
1116	}	1756	}
1117		1757
1118	sub find($) {	1758	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1759	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1760	my $login = $_[0];
1121		1761
1122	my $guard = cf::lock_acquire "user_find:$login";	1762	my $guard = cf::lock_acquire "user_find:$login";
1123		1763
1124	$cf::PLAYER{$_[0]} || do {	1764	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	1765	# rename old playerfiles to new ones
		1766	#TODO: remove when no longer required
		1767	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1768	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1769	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1770	aio_unlink +(playerdir $login) . "/$login.pl";
		1771
		1772	my $f = new_from_file cf::object::thawer path $login
1126	or return;	1773	or return;
		1774
		1775	my $pl = cf::player::load_pl $f
		1776	or return;
		1777
		1778	local $cf::PLAYER_LOADING{$login} = $pl;
		1779	$f->resolve_delayed_derefs;
1127	$cf::PLAYER{$login} = $pl	1780	$cf::PLAYER{$login} = $pl
1128	}	1781	}
1129	}	1782	}
1130	}	1783	}
		1784
		1785	cf::player->attach (
		1786	on_load => sub {
		1787	my ($pl, $path) = @_;
		1788
		1789	# restore slots saved in save, below
		1790	my $slots = delete $pl->{_slots};
		1791
		1792	$pl->ob->current_weapon ($slots->[0]);
		1793	$pl->combat_ob ($slots->[1]);
		1794	$pl->ranged_ob ($slots->[2]);
		1795	},
		1796	);
1131		1797
1132	sub save($) {	1798	sub save($) {
1133	my ($pl) = @_;	1799	my ($pl) = @_;
1134		1800
1135	return if $pl->{deny_save};	1801	return if $pl->{deny_save};
…		…
1137	my $path = path $pl;	1803	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1804	my $guard = cf::lock_acquire "user_save:$path";
1139		1805
1140	return if $pl->{deny_save};	1806	return if $pl->{deny_save};
1141		1807
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1808	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1809	$pl->{last_save} = $cf::RUNTIME;
1144		1810
		1811	cf::get_slot 0.01;
		1812
		1813	# save slots, to be restored later
		1814	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1815
1145	$pl->save_pl ($path);	1816	$pl->save_pl ($path);
1146	Coro::cede;	1817	cf::cede_to_tick;
1147	}	1818	}
1148		1819
1149	sub new($) {	1820	sub new($) {
1150	my ($login) = @_;	1821	my ($login) = @_;
1151		1822
…		…
1157	$cf::PLAYER{$login} = $self;	1828	$cf::PLAYER{$login} = $self;
1158		1829
1159	$self	1830	$self
1160	}	1831	}
1161		1832
		1833	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1834
		1835	=cut
		1836
		1837	sub send_msg {
		1838	my $ns = shift->ns
		1839	or return;
		1840	$ns->send_msg (@_);
		1841	}
		1842
		1843	=item $pl->quit_character
		1844
		1845	Nukes the player without looking back. If logged in, the connection will
		1846	be destroyed. May block for a long time.
		1847
		1848	=cut
		1849
1162	sub quit_character {	1850	sub quit_character {
1163	my ($pl) = @_;	1851	my ($pl) = @_;
1164		1852
		1853	my $name = $pl->ob->name;
		1854
1165	$pl->{deny_save} = 1;	1855	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1856	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1167		1857
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1858	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1169	$pl->deactivate;	1859	$pl->deactivate;
		1860
		1861	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1862	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1863	ext::highscore::check ($pl->ob);
		1864
1171	$pl->ns->destroy if $pl->ns;	1865	$pl->ns->destroy if $pl->ns;
1172		1866
1173	my $path = playerdir $pl;	1867	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1868	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1869	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1870	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1871	$pl->destroy;
		1872
		1873	my $prefix = qr<^~\Q$name\E/>;
		1874
		1875	# nuke player maps
		1876	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1877
1178	IO::AIO::aio_rmtree $temp;	1878	IO::AIO::aio_rmtree $temp;
1179	}	1879	}
1180		1880
		1881	=item $pl->kick
		1882
		1883	Kicks a player out of the game. This destroys the connection.
		1884
		1885	=cut
		1886
		1887	sub kick {
		1888	my ($pl, $kicker) = @_;
		1889
		1890	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1891	$pl->killer ("kicked");
		1892	$pl->ns->destroy;
		1893	}
		1894
		1895	=item cf::player::list_logins
		1896
		1897	Returns am arrayref of all valid playernames in the system, can take a
		1898	while and may block, so not sync_job-capable, ever.
		1899
		1900	=cut
		1901
		1902	sub list_logins {
		1903	my $dirs = aio_readdir $PLAYERDIR
		1904	or return [];
		1905
		1906	my @logins;
		1907
		1908	for my $login (@$dirs) {
		1909	my $path = path $login;
		1910
		1911	# a .pst is a dead give-away for a valid player
		1912	# if no pst file found, open and chekc for blocked users
		1913	if (aio_stat "$path.pst") {
		1914	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1915	aio_read $fh, 0, 512, my $buf, 0 or next;
		1916	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1917	}
		1918
		1919	utf8::decode $login;
		1920	push @logins, $login;
		1921	}
		1922
		1923	\@logins
		1924	}
		1925
		1926	=item $player->maps
		1927
		1928	=item cf::player::maps $login
		1929
		1930	Returns an arrayref of map paths that are private for this
		1931	player. May block.
		1932
		1933	=cut
		1934
		1935	sub maps($) {
		1936	my ($pl) = @_;
		1937
		1938	$pl = ref $pl ? $pl->ob->name : $pl;
		1939
		1940	my $files = aio_readdir playerdir $pl
		1941	or return;
		1942
		1943	my @paths;
		1944
		1945	for (@$files) {
		1946	utf8::decode $_;
		1947	next if /\.(?:pl|pst)$/;
		1948	next unless /^$PATH_SEP/o;
		1949
		1950	push @paths, cf::map::normalise "~$pl/$_";
		1951	}
		1952
		1953	\@paths
		1954	}
		1955
		1956	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1957
		1958	Expand deliantra pod fragments into protocol xml.
		1959
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1960	=item $player->ext_msg ($type, @msg)
1182		1961
1183	Sends an ext reply to the player.	1962	Sends an ext event to the client.
1184		1963
1185	=cut	1964	=cut
1186		1965
1187	sub ext_reply($$$%) {	1966	sub ext_msg($$@) {
1188	my ($self, $id, %msg) = @_;	1967	my ($self, $type, @msg) = @_;
1189		1968
1190	$msg{msgid} = $id;	1969	$self->ns->ext_msg ($type, @msg);
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1970	}
1194		1971
1195	package cf;	1972	=head3 cf::region
		1973
		1974	=over 4
		1975
		1976	=cut
		1977
		1978	package cf::region;
		1979
		1980	=item cf::region::find_by_path $path
		1981
		1982	Tries to decuce the likely region for a map knowing only its path.
		1983
		1984	=cut
		1985
		1986	sub find_by_path($) {
		1987	my ($path) = @_;
		1988
		1989	$path =~ s/^~[^\/]*//; # skip ~login
		1990
		1991	my ($match, $specificity);
		1992
		1993	for my $region (list) {
		1994	if ($region->{match} && $path =~ $region->{match}) {
		1995	($match, $specificity) = ($region, $region->specificity)
		1996	if $region->specificity > $specificity;
		1997	}
		1998	}
		1999
		2000	$match
		2001	}
1196		2002
1197	=back	2003	=back
1198
1199		2004
1200	=head3 cf::map	2005	=head3 cf::map
1201		2006
1202	=over 4	2007	=over 4
1203		2008
…		…
1206	package cf::map;	2011	package cf::map;
1207		2012
1208	use Fcntl;	2013	use Fcntl;
1209	use Coro::AIO;	2014	use Coro::AIO;
1210		2015
		2016	use overload
		2017	'""' => \&as_string,
		2018	fallback => 1;
		2019
1211	our $MAX_RESET = 3600;	2020	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	2021	our $DEFAULT_RESET = 3000;
1213		2022
1214	sub generate_random_map {	2023	sub generate_random_map {
		2024	my ($self, $rmp) = @_;
		2025
		2026	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2027
		2028	$self->_create_random_map ($rmp);
		2029	}
		2030
		2031	=item cf::map->register ($regex, $prio)
		2032
		2033	Register a handler for the map path matching the given regex at the
		2034	givne priority (higher is better, built-in handlers have priority 0, the
		2035	default).
		2036
		2037	=cut
		2038
		2039	sub register {
		2040	my (undef, $regex, $prio) = @_;
		2041	my $pkg = caller;
		2042
		2043	push @{"$pkg\::ISA"}, __PACKAGE__;
		2044
		2045	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2046	}
		2047
		2048	# also paths starting with '/'
		2049	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2050
		2051	sub thawer_merge {
		2052	my ($self, $merge) = @_;
		2053
		2054	# we have to keep some variables in memory intact
		2055	local $self->{path};
		2056	local $self->{load_path};
		2057
		2058	$self->SUPER::thawer_merge ($merge);
		2059	}
		2060
		2061	sub normalise {
1215	my ($path, $rmp) = @_;	2062	my ($path, $base) = @_;
1216		2063
1217	# mit "rum" bekleckern, nicht	2064	$path = "$path"; # make sure it's a string
1218	cf::map::_create_random_map	2065
		2066	$path =~ s/\.map$//;
		2067
		2068	# map plan:
		2069	#
		2070	# /! non-realised random map exit (special hack!)
		2071	# {... are special paths that are not being touched
		2072	# ?xxx/... are special absolute paths
		2073	# ?random/... random maps
		2074	# /... normal maps
		2075	# ~user/... per-player map of a specific user
		2076
		2077	$path =~ s/$PATH_SEP/\//go;
		2078
		2079	# treat it as relative path if it starts with
		2080	# something that looks reasonable
		2081	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2082	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2083
		2084	$base =~ s{[^/]+/?$}{};
		2085	$path = "$base/$path";
		2086	}
		2087
		2088	for ($path) {
		2089	redo if s{/\.?/}{/};
		2090	redo if s{/[^/]+/\.\./}{/};
		2091	}
		2092
1219	$path,	2093	$path
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})
1231	}	2094	}
1232		2095
1233	# and all this just because we cannot iterate over	2096	sub new_from_path {
1234	# all maps in C++...	2097	my (undef, $path, $base) = @_;
1235	sub change_all_map_light {	2098
		2099	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2100
		2101	$path = normalise $path, $base;
		2102
		2103	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2104	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2105	my $self = bless cf::map::new, $pkg;
		2106	$self->{path} = $path; $self->path ($path);
		2107	$self->init; # pass $1 etc.
		2108	return $self;
		2109	}
		2110	}
		2111
		2112	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2113	()
		2114	}
		2115
		2116	# may re-bless or do other evil things
		2117	sub init {
1236	my ($change) = @_;	2118	my ($self) = @_;
1237		2119
1238	$_->change_map_light ($change)	2120	$self
1239	for grep $_->outdoor, values %cf::MAP;
1240	}	2121	}
1241		2122
		2123	sub as_string {
		2124	my ($self) = @_;
		2125
		2126	"$self->{path}"
		2127	}
		2128
		2129	# the displayed name, this is a one way mapping
		2130	sub visible_name {
		2131	&as_string
		2132	}
		2133
		2134	# the original (read-only) location
		2135	sub load_path {
		2136	my ($self) = @_;
		2137
		2138	"$MAPDIR/$self->{path}.map"
		2139	}
		2140
		2141	# the temporary/swap location
		2142	sub save_path {
		2143	my ($self) = @_;
		2144
		2145	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2146	"$TMPDIR/$path.map"
		2147	}
		2148
		2149	# the unique path, undef == no special unique path
		2150	sub uniq_path {
		2151	my ($self) = @_;
		2152
		2153	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2154	"$UNIQUEDIR/$path"
		2155	}
		2156
		2157	sub decay_objects {
		2158	my ($self) = @_;
		2159
		2160	return if $self->{deny_reset};
		2161
		2162	$self->do_decay_objects;
		2163	}
		2164
		2165	sub unlink_save {
		2166	my ($self) = @_;
		2167
		2168	utf8::encode (my $save = $self->save_path);
		2169	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2170	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2171	}
		2172
1242	sub try_load_header($) {	2173	sub load_header_from($) {
1243	my ($path) = @_;	2174	my ($self, $path) = @_;
1244		2175
1245	utf8::encode $path;	2176	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	2177	my $f = new_from_file cf::object::thawer $path
1247	or return;	2178	or return;
1248		2179
1249	my $map = cf::map::new	2180	$self->_load_header ($f)
1250	or return;	2181	or return;
1251		2182
1252	# for better error messages only, will be overwritten	2183	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	2184	$f->resolve_delayed_derefs;
1254		2185
1255	$map->load_header ($path)	2186	$self->{load_path} = $path;
		2187
		2188	1
		2189	}
		2190
		2191	# used to laod the header of an original map
		2192	sub load_header_orig {
		2193	my ($self) = @_;
		2194
		2195	$self->load_header_from ($self->load_path)
		2196	}
		2197
		2198	# used to laod the header of an instantiated map
		2199	sub load_header_temp {
		2200	my ($self) = @_;
		2201
		2202	$self->load_header_from ($self->save_path)
		2203	}
		2204
		2205	# called after loading the header from an instantiated map
		2206	sub prepare_temp {
		2207	my ($self) = @_;
		2208
		2209	$self->last_access ((delete $self->{last_access})
		2210	|| $cf::RUNTIME); #d#
		2211	# safety
		2212	$self->{instantiate_time} = $cf::RUNTIME
		2213	if $self->{instantiate_time} > $cf::RUNTIME;
		2214	}
		2215
		2216	# called after loading the header from an original map
		2217	sub prepare_orig {
		2218	my ($self) = @_;
		2219
		2220	$self->{load_original} = 1;
		2221	$self->{instantiate_time} = $cf::RUNTIME;
		2222	$self->last_access ($cf::RUNTIME);
		2223	$self->instantiate;
		2224	}
		2225
		2226	sub load_header {
		2227	my ($self) = @_;
		2228
		2229	if ($self->load_header_temp) {
		2230	$self->prepare_temp;
		2231	} else {
		2232	$self->load_header_orig
1256	or return;	2233	or return;
		2234	$self->prepare_orig;
		2235	}
1257		2236
1258	$map->{load_path} = $path;	2237	$self->{deny_reset} = 1
		2238	if $self->no_reset;
1259		2239
1260	$map	2240	$self->default_region (cf::region::find_by_path $self->{path})
		2241	unless $self->default_region;
		2242
		2243	1
1261	}	2244	}
1262		2245
1263	sub find;	2246	sub find;
1264	sub find {	2247	sub find {
1265	my ($path, $origin) = @_;	2248	my ($path, $origin) = @_;
1266		2249
1267	#warn "find<$path,$origin>\n";#d#	2250	cf::cede_to_tick;
1268		2251
1269	$path = new cf::path $path, $origin && $origin->path;	2252	$path = normalise $path, $origin;
1270	my $key = $path->as_string;
1271		2253
1272	cf::lock_wait "map_find:$key";	2254	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1273
1274	$cf::MAP{$key} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	2255	my $guard2 = cf::lock_acquire "map_find:$path";
1276		2256
1277	# do it the slow way	2257	$cf::MAP{$path} || do {
1278	my $map = try_load_header $path->save_path;	2258	my $map = new_from_path cf::map $path
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	2259	or return;
1296		2260
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	2261	$map->{last_save} = $cf::RUNTIME;
1309		2262
1310	Coro::cede;	2263	$map->load_header
		2264	or return;
1311		2265
1312	if ($map->should_reset) {	2266	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2267	# doing this can freeze the server in a sync job, obviously
		2268	#$cf::WAIT_FOR_TICK->wait;
		2269	undef $guard2;
		2270	undef $guard1;
1313	$map->reset;	2271	$map->reset;
1314	undef $guard;
1315	$map = find $path	2272	return find $path;
1316	or return;
1317	}	2273	}
1318		2274
1319	$cf::MAP{$key} = $map	2275	$cf::MAP{$path} = $map
1320	}	2276	}
1321	}	2277	}
		2278
		2279	sub pre_load { }
		2280	#sub post_load { } # XS
1322		2281
1323	sub load {	2282	sub load {
1324	my ($self) = @_;	2283	my ($self) = @_;
1325		2284
		2285	local $self->{deny_reset} = 1; # loading can take a long time
		2286
1326	my $path = $self->{path};	2287	my $path = $self->{path};
		2288
		2289	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2290	my $guard = cf::lock_acquire "map_data:$path";
1328		2291
1329	return if $self->in_memory != cf::MAP_SWAPPED;	2292	return unless $self->valid;
		2293	return unless $self->state == cf::MAP_SWAPPED;
1330		2294
1331	$self->in_memory (cf::MAP_LOADING);
1332
1333	$self->alloc;	2295	$self->alloc;
1334	$self->load_objects ($self->{load_path}, 1)	2296
		2297	$self->pre_load;
		2298	cf::cede_to_tick;
		2299
		2300	if (exists $self->{load_path}) {
		2301	my $f = new_from_file cf::object::thawer $self->{load_path};
		2302	$f->skip_block;
		2303	$self->_load_objects ($f)
1335	or return;	2304	or return;
1336		2305
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2306	$self->post_load_original
1338	if delete $self->{load_original};	2307	if delete $self->{load_original};
1339		2308
1340	if (my $uniq = $path->uniq_path) {	2309	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	2310	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	2311	unless (aio_stat $uniq) {
		2312	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	2313	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	2314	$self->_load_objects ($f);
		2315	$f->resolve_delayed_derefs;
		2316	}
		2317	}
1345	}	2318	}
1346	}
1347		2319
1348	Coro::cede;	2320	$f->resolve_delayed_derefs;
		2321	} else {
		2322	$self->post_load_original
		2323	if delete $self->{load_original};
		2324	}
1349		2325
		2326	$self->state (cf::MAP_INACTIVE);
		2327
		2328	cf::cede_to_tick;
1350	# now do the right thing for maps	2329	# now do the right thing for maps
1351	$self->link_multipart_objects;	2330	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	2331	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	2332	unless $self->difficulty;
1363	$self->activate;	2333	cf::cede_to_tick;
		2334
		2335	unless ($self->{deny_activate}) {
		2336	$self->decay_objects;
		2337	$self->fix_auto_apply;
		2338	$self->update_buttons;
		2339	cf::cede_to_tick;
		2340	#$self->activate; # no longer activate maps automatically
		2341	}
		2342
		2343	$self->{last_save} = $cf::RUNTIME;
		2344	$self->last_access ($cf::RUNTIME);
		2345	}
		2346
		2347	$self->post_load;
		2348
1364	}	2349	1
		2350	}
1365		2351
1366	Coro::cede;	2352	# customize the map for a given player, i.e.
		2353	# return the _real_ map. used by e.g. per-player
		2354	# maps to change the path to ~playername/mappath
		2355	sub customise_for {
		2356	my ($self, $ob) = @_;
1367		2357
1368	$self->in_memory (cf::MAP_IN_MEMORY);	2358	return find "~" . $ob->name . "/" . $self->{path}
		2359	if $self->per_player;
		2360
		2361	# return find "?party/" . $ob->name . "/" . $self->{path}
		2362	# if $self->per_party;
		2363
		2364	$self
1369	}	2365	}
1370		2366
1371	sub find_sync {	2367	sub find_sync {
1372	my ($path, $origin) = @_;	2368	my ($path, $origin) = @_;
1373		2369
1374	cf::sync_job { cf::map::find $path, $origin }	2370	# it's a bug to call this from the main context
		2371	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2372	if $Coro::current == $Coro::main;
		2373
		2374	find $path, $origin
1375	}	2375	}
1376		2376
1377	sub do_load_sync {	2377	sub do_load_sync {
1378	my ($map) = @_;	2378	my ($map) = @_;
1379		2379
1380	cf::sync_job { $map->load };	2380	# it's a bug to call this from the main context
		2381	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2382	if $Coro::current == $Coro::main;
		2383
		2384	$map->load;
		2385	}
		2386
		2387	our %MAP_PREFETCH;
		2388	our $MAP_PREFETCHER = undef;
		2389
		2390	sub find_async {
		2391	my ($path, $origin, $load) = @_;
		2392
		2393	$path = normalise $path, $origin;
		2394
		2395	if (my $map = $cf::MAP{$path}) {
		2396	return $map if !$load || $map->linkable;
		2397	}
		2398
		2399	$MAP_PREFETCH{$path} |= $load;
		2400
		2401	$MAP_PREFETCHER ||= cf::async {
		2402	$Coro::current->{desc} = "map prefetcher";
		2403
		2404	while (%MAP_PREFETCH) {
		2405	for my $k (keys %MAP_PREFETCH) {
		2406	if (my $map = find $k) {
		2407	$map->load if $MAP_PREFETCH{$k};
		2408	}
		2409
		2410	delete $MAP_PREFETCH{$k};
		2411	}
		2412	}
		2413	undef $MAP_PREFETCHER;
		2414	};
		2415	$MAP_PREFETCHER->prio (6);
		2416
		2417	()
		2418	}
		2419
		2420	# common code, used by both ->save and ->swapout
		2421	sub _save {
		2422	my ($self) = @_;
		2423
		2424	$self->{last_save} = $cf::RUNTIME;
		2425
		2426	return unless $self->dirty;
		2427
		2428	my $save = $self->save_path; utf8::encode $save;
		2429	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2430
		2431	$self->{load_path} = $save;
		2432
		2433	return if $self->{deny_save};
		2434
		2435	local $self->{last_access} = $self->last_access;#d#
		2436
		2437	cf::async {
		2438	$Coro::current->{desc} = "map player save";
		2439	$_->contr->save for $self->players;
		2440	};
		2441
		2442	cf::get_slot 0.02;
		2443
		2444	if ($uniq) {
		2445	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2446	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2447	} else {
		2448	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2449	}
1381	}	2450	}
1382		2451
1383	sub save {	2452	sub save {
1384	my ($self) = @_;	2453	my ($self) = @_;
1385		2454
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2455	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2456
1388	$self->{last_save} = $cf::RUNTIME;	2457	$self->_save;
1389
1390	return unless $self->dirty;
1391
1392	my $save = $self->{path}->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1394
1395	$self->{load_path} = $save;
1396
1397	return if $self->{deny_save};
1398
1399	local $self->{last_access} = $self->last_access;#d#
1400
1401	cf::async {
1402	$_->contr->save for $self->players;
1403	};
1404
1405	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}
1411	}	2458	}
1412		2459
1413	sub swap_out {	2460	sub swap_out {
1414	my ($self) = @_;	2461	my ($self) = @_;
1415		2462
1416	# save first because save cedes
1417	$self->save;
1418
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2463	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2464
		2465	return if !$self->linkable;
		2466	return if $self->{deny_save};
1421	return if $self->players;	2467	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;
1423	return if $self->{deny_save};
1424		2468
		2469	# first deactivate the map and "unlink" it from the core
		2470	$self->deactivate;
		2471	$_->clear_links_to ($self) for values %cf::MAP;
		2472	$self->state (cf::MAP_SWAPPED);
		2473
		2474	# then atomically save
		2475	$self->_save;
		2476
		2477	# then free the map
1425	$self->clear;	2478	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2479	}
1428		2480
1429	sub reset_at {	2481	sub reset_at {
1430	my ($self) = @_;	2482	my ($self) = @_;
1431		2483
1432	# TODO: safety, remove and allow resettable per-player maps	2484	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2485	return 1e99 if $self->{deny_reset};
1435		2486
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2487	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2488	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2489
…		…
1443	my ($self) = @_;	2494	my ($self) = @_;
1444		2495
1445	$self->reset_at <= $cf::RUNTIME	2496	$self->reset_at <= $cf::RUNTIME
1446	}	2497	}
1447		2498
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2499	sub reset {
1470	my ($self) = @_;	2500	my ($self) = @_;
1471		2501
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2502	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2503
1474	return if $self->players;	2504	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2505
1477	warn "resetting map ", $self->path;#d#	2506	cf::trace "resetting map ", $self->path, "\n";
		2507
		2508	$self->state (cf::MAP_SWAPPED);
		2509
		2510	# need to save uniques path
		2511	unless ($self->{deny_save}) {
		2512	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2513
		2514	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2515	if $uniq;
		2516	}
1478		2517
1479	delete $cf::MAP{$self->path};	2518	delete $cf::MAP{$self->path};
1480		2519
		2520	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2521	$_->clear_links_to ($self) for values %cf::MAP;
		2522	$self->clear;
1482		2523
1483	$self->unlink_save;	2524	$self->unlink_save;
1484	$self->destroy;	2525	$self->destroy;
1485	}	2526	}
1486		2527
1487	my $nuke_counter = "aaaa";	2528	my $nuke_counter = "aaaa";
1488		2529
1489	sub nuke {	2530	sub nuke {
1490	my ($self) = @_;	2531	my ($self) = @_;
1491		2532
		2533	{
		2534	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2535
		2536	delete $cf::MAP{$self->path};
		2537
		2538	$self->unlink_save;
		2539
		2540	bless $self, "cf::map::wrap";
		2541	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	2542	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2543	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2544	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2545
		2546	$cf::MAP{$self->path} = $self;
		2547	}
		2548
1495	$self->reset; # polite request, might not happen	2549	$self->reset; # polite request, might not happen
1496	}	2550	}
1497		2551
1498	sub customise_for {	2552	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2553
1501	if ($map->per_player) {	2554	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2555	maps. May block.
		2556
		2557	=cut
		2558
		2559	sub tmp_maps() {
1503	}	2560	[
1504		2561	map {
1505	$map	2562	utf8::decode $_;
		2563	/\.map$/
		2564	? normalise $_
		2565	: ()
		2566	} @{ aio_readdir $TMPDIR or [] }
		2567	]
1506	}	2568	}
1507		2569
1508	sub emergency_save {	2570	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2571
1511	warn "enter emergency perl save\n";	2572	Returns an arrayref with all map paths of currently instantiated and saved
		2573	random maps. May block.
1512		2574
1513	cf::sync_job {	2575	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2576
1518	warn "begin emergency map save\n";	2577	sub random_maps() {
1519	$_->save for values %cf::MAP;	2578	[
1520	warn "end emergency map save\n";	2579	map {
		2580	utf8::decode $_;
		2581	/\.map$/
		2582	? normalise "?random/$_"
		2583	: ()
		2584	} @{ aio_readdir $RANDOMDIR or [] }
		2585	]
		2586	}
		2587
		2588	=item cf::map::unique_maps
		2589
		2590	Returns an arrayref of paths of all shared maps that have
		2591	instantiated unique items. May block.
		2592
		2593	=cut
		2594
		2595	sub unique_maps() {
		2596	[
		2597	map {
		2598	utf8::decode $_;
		2599	s/\.map$//; # TODO future compatibility hack
		2600	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2601	? ()
		2602	: normalise $_
		2603	} @{ aio_readdir $UNIQUEDIR or [] }
		2604	]
		2605	}
		2606
		2607	=item cf::map::static_maps
		2608
		2609	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2610	file in the shared directory excluding F</styles> and F</editor>). May
		2611	block.
		2612
		2613	=cut
		2614
		2615	sub static_maps() {
		2616	my @dirs = "";
		2617	my @maps;
		2618
		2619	while (@dirs) {
		2620	my $dir = shift @dirs;
		2621
		2622	next if $dir eq "/styles" || $dir eq "/editor";
		2623
		2624	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2625	or return;
		2626
		2627	for (@$files) {
		2628	s/\.map$// or next;
		2629	utf8::decode $_;
		2630	push @maps, "$dir/$_";
		2631	}
		2632
		2633	push @dirs, map "$dir/$_", @$dirs;
1521	};	2634	}
1522		2635
1523	warn "leave emergency perl save\n";	2636	\@maps
		2637	}
		2638
		2639	=back
		2640
		2641	=head3 cf::object
		2642
		2643	=cut
		2644
		2645	package cf::object;
		2646
		2647	=over 4
		2648
		2649	=item $ob->inv_recursive
		2650
		2651	Returns the inventory of the object I<and> their inventories, recursively,
		2652	but I<not> the object itself.
		2653
		2654	=cut
		2655
		2656	sub inv_recursive_;
		2657	sub inv_recursive_ {
		2658	map { $_, inv_recursive_ $_->inv } @_
		2659	}
		2660
		2661	sub inv_recursive {
		2662	inv_recursive_ inv $_[0]
		2663	}
		2664
		2665	=item $ref = $ob->ref
		2666
		2667	Creates and returns a persistent reference to an object that can be stored as a string.
		2668
		2669	=item $ob = cf::object::deref ($refstring)
		2670
		2671	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2672	even if the object actually exists. May block.
		2673
		2674	=cut
		2675
		2676	sub deref {
		2677	my ($ref) = @_;
		2678
		2679	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2680	my ($uuid, $name) = ($1, $2);
		2681	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2682	or return;
		2683	$pl->ob->uuid eq $uuid
		2684	or return;
		2685
		2686	$pl->ob
		2687	} else {
		2688	warn "$ref: cannot resolve object reference\n";
		2689	undef
		2690	}
1524	}	2691	}
1525		2692
1526	package cf;	2693	package cf;
1527		2694
1528	=back	2695	=back
1529
1530		2696
1531	=head3 cf::object::player	2697	=head3 cf::object::player
1532		2698
1533	=over 4	2699	=over 4
1534		2700
…		…
1537	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1538	can be C<undef>. Does the right thing when the player is currently in a	2704	can be C<undef>. Does the right thing when the player is currently in a
1539	dialogue with the given NPC character.	2705	dialogue with the given NPC character.
1540		2706
1541	=cut	2707	=cut
		2708
		2709	our $SAY_CHANNEL = {
		2710	id => "say",
		2711	title => "Map",
		2712	reply => "say ",
		2713	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2714	};
		2715
		2716	our $CHAT_CHANNEL = {
		2717	id => "chat",
		2718	title => "Chat",
		2719	reply => "chat ",
		2720	tooltip => "Player chat and shouts, global to the server.",
		2721	};
1542		2722
1543	# rough implementation of a future "reply" method that works	2723	# rough implementation of a future "reply" method that works
1544	# with dialog boxes.	2724	# with dialog boxes.
1545	#TODO: the first argument must go, split into a $npc->reply_to ( method	2725	#TODO: the first argument must go, split into a $npc->reply_to ( method
1546	sub cf::object::player::reply($$$;$) {	2726	sub cf::object::player::reply($$$;$) {
…		…
1548		2728
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2730
1551	if ($self->{record_replies}) {	2731	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2733
1553	} else {	2734	} else {
		2735	my $pl = $self->contr;
		2736
		2737	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2738	my $dialog = $pl->{npc_dialog};
		2739	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2740
		2741	} else {
1554	$msg = $npc->name . " says: $msg" if $npc;	2742	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2743	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2744	}
1556	}	2745	}
		2746	}
		2747
		2748	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2749
		2750	=cut
		2751
		2752	sub cf::object::send_msg {
		2753	my $pl = shift->contr
		2754	or return;
		2755	$pl->send_msg (@_);
1557	}	2756	}
1558		2757
1559	=item $player_object->may ("access")	2758	=item $player_object->may ("access")
1560		2759
1561	Returns wether the given player is authorized to access resource "access"	2760	Returns wether the given player is authorized to access resource "access"
1562	(e.g. "command_wizcast").	2761	(e.g. "command_wizcast").
1563		2762
		2763	This is implemented by checking a config setting of C<may_access> where
		2764	C<access> is replaced by the access string. The following alternatives are
		2765	possible (and are tested in order):
		2766
		2767	=over 4
		2768
		2769	=item * Player is DM
		2770
		2771	The request will succeed.
		2772
		2773	=item * may_access is an array reference
		2774
		2775	If either the player nickname or UUID is in the array, the request will
		2776	succeed, otherwise it will fail.
		2777
		2778	=item * may_access is a true value
		2779
		2780	The request will succeed.
		2781
		2782	=item * may_access is missing or false
		2783
		2784	The request will fail.
		2785
		2786	=back
		2787
1564	=cut	2788	=cut
1565		2789
1566	sub cf::object::player::may {	2790	sub cf::object::player::may {
1567	my ($self, $access) = @_;	2791	my ($self, $access) = @_;
1568		2792
1569	$self->flag (cf::FLAG_WIZ) ||	2793	$self->flag (cf::FLAG_WIZ) ||
1570	(ref $cf::CFG{"may_$access"}	2794	(ref $cf::CFG{"may_$access"}
1571	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2795	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1572	: $cf::CFG{"may_$access"})	2796	: $cf::CFG{"may_$access"})
1573	}	2797	}
1574		2798
1575	=item $player_object->enter_link	2799	=item $player_object->enter_link
1576		2800
1577	Freezes the player and moves him/her to a special map (C<{link}>).	2801	Freezes the player and moves him/her to a special map (C<{link}>).
1578		2802
1579	The player should be reaosnably safe there for short amounts of time. You	2803	The player should be reasonably safe there for short amounts of time (e.g.
1580	I<MUST> call C<leave_link> as soon as possible, though.	2804	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2805	though, as the player cannot control the character while it is on the link
		2806	map.
		2807
		2808	This method will never block, which is the whole reaosn for it's
		2809	existance: you can I<always> put a player onto the link map, which is the
		2810	only place to put objects that is guaranteed to exist.
		2811
		2812	A typical usage pattern is to call C<enter_link> synchronously from the
		2813	server, then start a new thread, do your blocking stuff there and then
		2814	call C<leave_link> from that thread.
1581		2815
1582	=item $player_object->leave_link ($map, $x, $y)	2816	=item $player_object->leave_link ($map, $x, $y)
1583		2817
1584	Moves the player out of the specila link map onto the given map. If the	2818	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2819	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2820	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2821	fails, to the emergency map position.
1588		2822
1589	Might block.	2823	Might block.
1590		2824
1591	=cut	2825	=cut
		2826
		2827	sub link_map {
		2828	unless ($LINK_MAP) {
		2829	$LINK_MAP = cf::map::find "{link}"
		2830	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2831	$LINK_MAP->load;
		2832	}
		2833
		2834	$LINK_MAP
		2835	}
1592		2836
1593	sub cf::object::player::enter_link {	2837	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2838	my ($self) = @_;
1595		2839
1596	$self->deactivate_recursive;	2840	$self->deactivate_recursive;
1597		2841
1598	return if $self->map == $LINK_MAP;	2842	++$self->{_link_recursion};
		2843
		2844	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2845
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2846	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2847	if $self->map && $self->map->{path} ne "{link}";
1602		2848
1603	$self->enter_map ($LINK_MAP, 20, 20);	2849	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1604	}	2850	}
1605		2851
1606	sub cf::object::player::leave_link {	2852	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2853	my ($self, $map, $x, $y) = @_;
		2854
		2855	return unless $self->contr->active;
1608		2856
1609	my $link_pos = delete $self->{_link_pos};	2857	my $link_pos = delete $self->{_link_pos};
1610		2858
1611	unless ($map) {	2859	unless ($map) {
1612	# restore original map position	2860	# restore original map position
…		…
1623	($x, $y) = (-1, -1)	2871	($x, $y) = (-1, -1)
1624	unless (defined $x) && (defined $y);	2872	unless (defined $x) && (defined $y);
1625		2873
1626	# use -1 or undef as default coordinates, not 0, 0	2874	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2875	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2876	if $x <= 0 && $y <= 0;
1629		2877
1630	$map->load;	2878	$map->load;
1631		2879
1632	return unless $self->contr->active;	2880	return unless $self->contr->active;
		2881
		2882	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2883	if ($self->enter_map ($map, $x, $y)) {
		2884	# entering was successful
		2885	delete $self->{_link_recursion};
		2886	# only activate afterwards, to support waiting in hooks
1633	$self->activate_recursive;	2887	$self->activate_recursive;
1634	$self->enter_map ($map, $x, $y);
1635	}
1636
1637	cf::player->attach (
1638	on_logout => sub {
1639	my ($pl) = @_;
1640
1641	# abort map switching before logout
1642	if ($pl->ob->{_link_pos}) {
1643	cf::sync_job {
1644	$pl->ob->leave_link
1645	};
1646	}
1647	},	2888	}
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2889
1651	# try to abort aborted map switching on player login :)	2890	}
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668		2891
1669	=item $player_object->goto ($path, $x, $y)	2892	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1670		2893
		2894	Moves the player to the given map-path and coordinates by first freezing
		2895	her, loading and preparing them map, calling the provided $check callback
		2896	that has to return the map if sucecssful, and then unfreezes the player on
		2897	the new (success) or old (failed) map position. In either case, $done will
		2898	be called at the end of this process.
		2899
		2900	Note that $check will be called with a potentially non-loaded map, so if
		2901	it needs a loaded map it has to call C<< ->load >>.
		2902
1671	=cut	2903	=cut
		2904
		2905	our $GOTOGEN;
1672		2906
1673	sub cf::object::player::goto {	2907	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2908	my ($self, $path, $x, $y, $check, $done) = @_;
		2909
		2910	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2911	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2912	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2913	($path, $x, $y) = @$EMERGENCY_POSITION;
		2914	}
		2915
		2916	# do generation counting so two concurrent goto's will be executed in-order
		2917	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1675		2918
1676	$self->enter_link;	2919	$self->enter_link;
1677		2920
1678	(async {	2921	(async {
1679	$path = new cf::path $path;	2922	$Coro::current->{desc} = "player::goto $path $x $y";
1680		2923
1681	my $map = cf::map::find $path->as_string;	2924	# *tag paths override both path and x|y
		2925	if ($path =~ /^\*(.*)$/) {
		2926	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2927	my $ob = $obs[rand @obs];
		2928
		2929	# see if we actually can go there
		2930	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2931	$ob = $obs[rand @obs];
		2932	} else {
		2933	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2934	}
		2935	# else put us there anyways for now #d#
		2936
		2937	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2938	} else {
		2939	($path, $x, $y) = (undef, undef, undef);
		2940	}
		2941	}
		2942
		2943	my $map = eval {
		2944	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2945
		2946	if ($map) {
1682	$map = $map->customise_for ($self) if $map;	2947	$map = $map->customise_for ($self);
1683		2948	$map = $check->($map, $x, $y, $self) if $check && $map;
1684	# warn "entering ", $map->path, " at ($x, $y)\n"	2949	} else {
1685	# if $map;
1686
1687	$map or $map->cluck ("oy");#d#
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2950	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2951	}
1689		2952
		2953	$map
		2954	};
		2955
		2956	if ($@) {
		2957	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2958	LOG llevError | logBacktrace, Carp::longmess $@;
		2959	}
		2960
		2961	if ($gen == $self->{_goto_generation}) {
		2962	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2963	$self->leave_link ($map, $x, $y);
		2964	}
		2965
		2966	$done->($self) if $done;
1691	})->prio (1);	2967	})->prio (1);
1692	}	2968	}
1693		2969
1694	=item $player_object->enter_exit ($exit_object)	2970	=item $player_object->enter_exit ($exit_object)
1695		2971
…		…
1697		2973
1698	sub parse_random_map_params {	2974	sub parse_random_map_params {
1699	my ($spec) = @_;	2975	my ($spec) = @_;
1700		2976
1701	my $rmp = { # defaults	2977	my $rmp = { # defaults
1702	xsize => 10,	2978	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2979	ysize => (cf::rndm 15, 40),
		2980	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2981	#layout => string,
1704	};	2982	};
1705		2983
1706	for (split /\n/, $spec) {	2984	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2985	my ($k, $v) = split /\s+/, $_, 2;
1708		2986
…		…
1720	# that depends on the exit object	2998	# that depends on the exit object
1721		2999
1722	my $rmp = parse_random_map_params $exit->msg;	3000	my $rmp = parse_random_map_params $exit->msg;
1723		3001
1724	if ($exit->map) {	3002	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	3003	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	3004	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	3005	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	3006	$rmp->{origin_y} = $exit->y;
		3007
		3008	$exit->map->touch;
1729	}	3009	}
1730		3010
1731	$rmp->{random_seed} ||= $exit->random_seed;	3011	$rmp->{random_seed} ||= $exit->random_seed;
1732		3012
1733	my $data = cf::to_json $rmp;	3013	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1734	my $md5 = Digest::MD5::md5_hex $data;	3014	my $md5 = Digest::MD5::md5_hex $data;
		3015	my $meta = "$RANDOMDIR/$md5.meta";
1735		3016
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	3017	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	3018	aio_write $fh, 0, (length $data), $data, 0;
		3019	undef $fh;
		3020	aio_rename "$meta~", $meta;
1738		3021
		3022	my $slaying = "?random/$md5";
		3023
		3024	if ($exit->valid) {
1739	$exit->slaying ("?random/$md5");	3025	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	3026	$exit->msg (undef);
		3027	}
1741	}	3028	}
1742	}	3029	}
1743		3030
1744	sub cf::object::player::enter_exit {	3031	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	3032	my ($self, $exit) = @_;
…		…
1747	return unless $self->type == cf::PLAYER;	3034	return unless $self->type == cf::PLAYER;
1748		3035
1749	$self->enter_link;	3036	$self->enter_link;
1750		3037
1751	(async {	3038	(async {
1752	$self->deactivate_recursive; # just to be sure	3039	$Coro::current->{desc} = "enter_exit";
		3040
1753	unless (eval {	3041	unless (eval {
		3042	$self->deactivate_recursive; # just to be sure
		3043
		3044	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3045	my $x = $exit->stats->hp;
		3046	my $y = $exit->stats->sp;
		3047
		3048	# special map handling
		3049	my $slaying = $exit->slaying;
		3050
		3051	# special map handling
		3052	if ($slaying eq "/!") {
		3053	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3054
1754	prepare_random_map $exit	3055	prepare_random_map $exit
		3056	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3057
1755	if $exit->slaying eq "/!";	3058	$map = $exit->slaying;
1756		3059
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3060	} elsif ($slaying eq '!up') {
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3061	$map = $exit->map->tile_path (cf::TILE_UP);
		3062	$x = $exit->x;
		3063	$y = $exit->y;
1759		3064
		3065	} elsif ($slaying eq '!down') {
		3066	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3067	$x = $exit->x;
		3068	$y = $exit->y;
		3069	}
		3070
		3071	$self->goto ($map, $x, $y);
		3072
		3073	# if exit is damned, update players death & WoR home-position
		3074	$self->contr->savebed ($map, $x, $y)
		3075	if $exit->flag (cf::FLAG_DAMNED);
		3076
1760	1;	3077	1
1761	}) {	3078	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	3079	$self->message ("Something went wrong deep within the deliantra server. "
1763	. "I'll try to bring you back to the map you were before. "	3080	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	3081	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	3082	cf::NDI_UNIQUE | cf::NDI_RED);
1766		3083
1767	warn "ERROR in enter_exit: $@";	3084	error "ERROR in enter_exit: $@";
1768	$self->leave_link;	3085	$self->leave_link;
1769	}	3086	}
1770	})->prio (1);	3087	})->prio (1);
1771	}	3088	}
1772		3089
1773	=head3 cf::client	3090	=head3 cf::client
1774		3091
1775	=over 4	3092	=over 4
1776		3093
1777	=item $client->send_drawinfo ($text, $flags)	3094	=item $client->send_big_packet ($pkt)
1778		3095
1779	Sends a drawinfo packet to the client. Circumvents output buffering so	3096	Like C<send_packet>, but tries to compress large packets, and fragments
1780	should not be used under normal circumstances.	3097	them as required.
1781		3098
1782	=cut	3099	=cut
1783		3100
		3101	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3102
		3103	sub cf::client::send_big_packet {
		3104	my ($self, $pkt) = @_;
		3105
		3106	# try lzf for large packets
		3107	$pkt = "lzf " . Compress::LZF::compress $pkt
		3108	if 1024 <= length $pkt and $self->{can_lzf};
		3109
		3110	# split very large packets
		3111	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3112	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3113	$pkt = "frag";
		3114	}
		3115
		3116	$self->send_packet ($pkt);
		3117	}
		3118
		3119	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3120
		3121	Send a msg packet to the client, formatting the msg for the client if
		3122	necessary. C<$type> should be a string identifying the type of the
		3123	message, with C<log> being the default. If C<$color> is negative, suppress
		3124	the message unless the client supports the msg packet.
		3125
		3126	=cut
		3127
		3128	# non-persistent channels (usually the info channel)
		3129	our %CHANNEL = (
		3130	"c/motd" => {
		3131	id => "infobox",
		3132	title => "MOTD",
		3133	reply => undef,
		3134	tooltip => "The message of the day",
		3135	},
		3136	"c/identify" => {
		3137	id => "infobox",
		3138	title => "Identify",
		3139	reply => undef,
		3140	tooltip => "Items recently identified",
		3141	},
		3142	"c/examine" => {
		3143	id => "infobox",
		3144	title => "Examine",
		3145	reply => undef,
		3146	tooltip => "Signs and other items you examined",
		3147	},
		3148	"c/shopinfo" => {
		3149	id => "infobox",
		3150	title => "Shop Info",
		3151	reply => undef,
		3152	tooltip => "What your bargaining skill tells you about the shop",
		3153	},
		3154	"c/book" => {
		3155	id => "infobox",
		3156	title => "Book",
		3157	reply => undef,
		3158	tooltip => "The contents of a note or book",
		3159	},
		3160	"c/lookat" => {
		3161	id => "infobox",
		3162	title => "Look",
		3163	reply => undef,
		3164	tooltip => "What you saw there",
		3165	},
		3166	"c/who" => {
		3167	id => "infobox",
		3168	title => "Players",
		3169	reply => undef,
		3170	tooltip => "Shows players who are currently online",
		3171	},
		3172	"c/body" => {
		3173	id => "infobox",
		3174	title => "Body Parts",
		3175	reply => undef,
		3176	tooltip => "Shows which body parts you possess and are available",
		3177	},
		3178	"c/statistics" => {
		3179	id => "infobox",
		3180	title => "Statistics",
		3181	reply => undef,
		3182	tooltip => "Shows your primary statistics",
		3183	},
		3184	"c/skills" => {
		3185	id => "infobox",
		3186	title => "Skills",
		3187	reply => undef,
		3188	tooltip => "Shows your experience per skill and item power",
		3189	},
		3190	"c/shopitems" => {
		3191	id => "infobox",
		3192	title => "Shop Items",
		3193	reply => undef,
		3194	tooltip => "Shows the items currently for sale in this shop",
		3195	},
		3196	"c/resistances" => {
		3197	id => "infobox",
		3198	title => "Resistances",
		3199	reply => undef,
		3200	tooltip => "Shows your resistances",
		3201	},
		3202	"c/pets" => {
		3203	id => "infobox",
		3204	title => "Pets",
		3205	reply => undef,
		3206	tooltip => "Shows information abotu your pets/a specific pet",
		3207	},
		3208	"c/perceiveself" => {
		3209	id => "infobox",
		3210	title => "Perceive Self",
		3211	reply => undef,
		3212	tooltip => "You gained detailed knowledge about yourself",
		3213	},
		3214	"c/uptime" => {
		3215	id => "infobox",
		3216	title => "Uptime",
		3217	reply => undef,
		3218	tooltip => "How long the server has been running since last restart",
		3219	},
		3220	"c/mapinfo" => {
		3221	id => "infobox",
		3222	title => "Map Info",
		3223	reply => undef,
		3224	tooltip => "Information related to the maps",
		3225	},
		3226	"c/party" => {
		3227	id => "party",
		3228	title => "Party",
		3229	reply => "gsay ",
		3230	tooltip => "Messages and chat related to your party",
		3231	},
		3232	"c/death" => {
		3233	id => "death",
		3234	title => "Death",
		3235	reply => undef,
		3236	tooltip => "Reason for and more info about your most recent death",
		3237	},
		3238	"c/fatal" => {
		3239	id => "fatal",
		3240	title => "Fatal Error",
		3241	reply => undef,
		3242	tooltip => "Reason for the server disconnect",
		3243	},
		3244	"c/say" => $SAY_CHANNEL,
		3245	"c/chat" => $CHAT_CHANNEL,
		3246	);
		3247
1784	sub cf::client::send_drawinfo {	3248	sub cf::client::send_msg {
		3249	my ($self, $channel, $msg, $color, @extra) = @_;
		3250
		3251	$msg = $self->pl->expand_cfpod ($msg)
		3252	unless $color & cf::NDI_VERBATIM;
		3253
		3254	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3255
		3256	# check predefined channels, for the benefit of C
		3257	if ($CHANNEL{$channel}) {
		3258	$channel = $CHANNEL{$channel};
		3259
		3260	$self->ext_msg (channel_info => $channel);
		3261	$channel = $channel->{id};
		3262
		3263	} elsif (ref $channel) {
		3264	# send meta info to client, if not yet sent
		3265	unless (exists $self->{channel}{$channel->{id}}) {
		3266	$self->{channel}{$channel->{id}} = $channel;
		3267	$self->ext_msg (channel_info => $channel);
		3268	}
		3269
		3270	$channel = $channel->{id};
		3271	}
		3272
		3273	return unless @extra || length $msg;
		3274
		3275	# default colour, mask it out
		3276	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3277	if $color & cf::NDI_DEF;
		3278
		3279	my $pkt = "msg "
		3280	. $self->{json_coder}->encode (
		3281	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3282	);
		3283
		3284	$self->send_big_packet ($pkt);
		3285	}
		3286
		3287	=item $client->ext_msg ($type, @msg)
		3288
		3289	Sends an ext event to the client.
		3290
		3291	=cut
		3292
		3293	sub cf::client::ext_msg($$@) {
1785	my ($self, $text, $flags) = @_;	3294	my ($self, $type, @msg) = @_;
1786		3295
1787	utf8::encode $text;	3296	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1789	}	3297	}
1790
1791		3298
1792	=item $success = $client->query ($flags, "text", \&cb)	3299	=item $success = $client->query ($flags, "text", \&cb)
1793		3300
1794	Queues a query to the client, calling the given callback with	3301	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3302	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3303	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		3304
1798	Queries can fail, so check the return code. Or don't, as queries will become	3305	Queries can fail, so check the return code. Or don't, as queries will
1799	reliable at some point in the future.	3306	become reliable at some point in the future.
1800		3307
1801	=cut	3308	=cut
1802		3309
1803	sub cf::client::query {	3310	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	3311	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	3319	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3320	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		3321
1815	$self->send_packet ($self->{query_queue}[0][0])	3322	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	3323	if @{ $self->{query_queue} } == 1;
		3324
		3325	1
		3326	}
		3327
		3328	=item $client->update_command_faces
		3329
		3330	=cut
		3331
		3332	our %COMMAND_FACE;
		3333
		3334	sub cf::client::update_command_faces {
		3335	my ($self) = @_;
		3336
		3337	my @faces = grep $_,
		3338	$COMMAND_FACE{preferred},
		3339	$COMMAND_FACE{standard},
		3340	$COMMAND_FACE{skill},
		3341	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3342	$COMMAND_FACE{emote},
		3343	;
		3344
		3345	$self->send_face ($_)
		3346	for @faces;
		3347	$self->flush_fx;
		3348
		3349	$self->ext_msg (command_list => @faces);
		3350	}
		3351
		3352	=item cf::client::set_command_face $type, $commands
		3353
		3354	=cut
		3355
		3356	sub cf::client::set_command_face {
		3357	my ($type, $list) = @_;
		3358
		3359	my $idx = &cf::face::set ( #d# ugly forward reference
		3360	"command_list/$type" => cf::FT_RSRC,
		3361	JSON::XS->new->utf8->encode ([ sort @$list ])
		3362	);
		3363
		3364	$COMMAND_FACE{$type} = $idx;
1817	}	3365	}
1818		3366
1819	cf::client->attach (	3367	cf::client->attach (
		3368	on_connect => sub {
		3369	my ($ns) = @_;
		3370
		3371	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3372	},
1820	on_reply => sub {	3373	on_reply => sub {
1821	my ($ns, $msg) = @_;	3374	my ($ns, $msg) = @_;
1822		3375
1823	# this weird shuffling is so that direct followup queries	3376	# this weird shuffling is so that direct followup queries
1824	# get handled first	3377	# get handled first
1825	my $queue = delete $ns->{query_queue}	3378	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	3379	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		3380
1828	(shift @$queue)->[1]->($msg);	3381	(shift @$queue)->[1]->($msg);
		3382	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		3383
1830	push @{ $ns->{query_queue} }, @$queue;	3384	push @{ $ns->{query_queue} }, @$queue;
1831		3385
1832	if (@{ $ns->{query_queue} } == @$queue) {	3386	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	3387	if (@$queue) {
…		…
1835	} else {	3389	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3390	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	3391	}
1838	}	3392	}
1839	},	3393	},
		3394	on_exticmd => sub {
		3395	my ($ns, $buf) = @_;
		3396
		3397	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3398
		3399	if (ref $msg) {
		3400	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3401
		3402	if (my $cb = $EXTIACMD{$type}) {
		3403	$cb->(
		3404	$ns,
		3405	sub {
		3406	$ns->ext_msg ("reply-$reply", @_)
		3407	if $reply;
		3408	},
		3409	@payload
		3410	);
		3411	} else {
		3412	my @reply;
		3413
		3414	if (my $cb = $EXTICMD{$type}) {
		3415	@reply = $cb->($ns, @payload);
		3416	}
		3417
		3418	$ns->ext_msg ("reply-$reply", @reply)
		3419	if $reply;
		3420	}
		3421	} else {
		3422	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3423	}
		3424
		3425	cf::override;
		3426	},
1840	);	3427	);
1841		3428
1842	=item $client->async (\&cb)	3429	=item $client->async (\&cb)
1843		3430
1844	Create a new coroutine, running the specified callback. The coroutine will	3431	Create a new coroutine, running the specified callback. The coroutine will
…		…
1860		3447
1861	$coro	3448	$coro
1862	}	3449	}
1863		3450
1864	cf::client->attach (	3451	cf::client->attach (
1865	on_destroy => sub {	3452	on_client_destroy => sub {
1866	my ($ns) = @_;	3453	my ($ns) = @_;
1867		3454
1868	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3455	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1869	},	3456	},
1870	);	3457	);
…		…
1885	our $safe = new Safe "safe";	3472	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	3473	our $safe_hole = new Safe::Hole;
1887		3474
1888	$SIG{FPE} = 'IGNORE';	3475	$SIG{FPE} = 'IGNORE';
1889		3476
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3477	$safe->permit_only (Opcode::opset qw(
		3478	:base_core :base_mem :base_orig :base_math :base_loop
		3479	grepstart grepwhile mapstart mapwhile
		3480	sort time
		3481	));
1891		3482
1892	# here we export the classes and methods available to script code	3483	# here we export the classes and methods available to script code
1893		3484
1894	=pod	3485	=pod
1895		3486
1896	The following fucntions and emthods are available within a safe environment:	3487	The following functions and methods are available within a safe environment:
1897		3488
1898	cf::object contr pay_amount pay_player map	3489	cf::object
		3490	contr pay_amount pay_player map x y force_find force_add destroy
		3491	insert remove name archname title slaying race decrease split
		3492	value
		3493
1899	cf::object::player player	3494	cf::object::player
1900	cf::player peaceful	3495	player
1901	cf::map trigger	3496
		3497	cf::player
		3498	peaceful
		3499
		3500	cf::map
		3501	trigger
1902		3502
1903	=cut	3503	=cut
1904		3504
1905	for (	3505	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	3506	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3507	insert remove inv nrof name archname title slaying race
		3508	decrease split destroy change_exp value msg lore send_msg)],
1907	["cf::object::player" => qw(player)],	3509	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	3510	["cf::player" => qw(peaceful send_msg)],
1909	["cf::map" => qw(trigger)],	3511	["cf::map" => qw(trigger)],
1910	) {	3512	) {
1911	no strict 'refs';
1912	my ($pkg, @funs) = @$_;	3513	my ($pkg, @funs) = @$_;
1913	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3514	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1914	for @funs;	3515	for @funs;
1915	}	3516	}
1916		3517
…		…
1931		3532
1932	my $qcode = $code;	3533	my $qcode = $code;
1933	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3534	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1934	$qcode =~ s/\n/\\n/g;	3535	$qcode =~ s/\n/\\n/g;
1935		3536
		3537	%vars = (_dummy => 0) unless %vars;
		3538
		3539	my @res;
1936	local $_;	3540	local $_;
1937	local @safe::cf::_safe_eval_args = values %vars;
1938		3541
1939	my $eval =	3542	my $eval =
1940	"do {\n"	3543	"do {\n"
1941	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3544	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1942	. "#line 0 \"{$qcode}\"\n"	3545	. "#line 0 \"{$qcode}\"\n"
1943	. $code	3546	. $code
1944	. "\n}"	3547	. "\n}"
1945	;	3548	;
1946		3549
		3550	if ($CFG{safe_eval}) {
1947	sub_generation_inc;	3551	sub_generation_inc;
		3552	local @safe::cf::_safe_eval_args = values %vars;
1948	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3553	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1949	sub_generation_inc;	3554	sub_generation_inc;
		3555	} else {
		3556	local @cf::_safe_eval_args = values %vars;
		3557	@res = wantarray ? eval eval : scalar eval $eval;
		3558	}
1950		3559
1951	if ($@) {	3560	if ($@) {
1952	warn "$@";	3561	warn "$@",
1953	warn "while executing safe code '$code'\n";	3562	"while executing safe code '$code'\n",
1954	warn "with arguments " . (join " ", %vars) . "\n";	3563	"with arguments " . (join " ", %vars) . "\n";
1955	}	3564	}
1956		3565
1957	wantarray ? @res : $res[0]	3566	wantarray ? @res : $res[0]
1958	}	3567	}
1959		3568
…		…
1973	=cut	3582	=cut
1974		3583
1975	sub register_script_function {	3584	sub register_script_function {
1976	my ($fun, $cb) = @_;	3585	my ($fun, $cb) = @_;
1977		3586
1978	no strict 'refs';	3587	$fun = "safe::$fun" if $CFG{safe_eval};
1979	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3588	*$fun = $safe_hole->wrap ($cb);
1980	}	3589	}
1981		3590
1982	=back	3591	=back
1983		3592
1984	=cut	3593	=cut
1985		3594
1986	#############################################################################	3595	#############################################################################
1987		3596	# the server's init and main functions
1988	=head2 EXTENSION DATABASE SUPPORT
1989
1990	Crossfire maintains a very simple database for extension use. It can
1991	currently store anything that can be serialised using Storable, which
1992	excludes objects.
1993
1994	The parameter C<$family> should best start with the name of the extension
1995	using it, it should be unique.
1996
1997	=over 4
1998
1999	=item $hashref = cf::db_get $family
2000
2001	Return a hashref for use by the extension C<$family>, which can be
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004
2005	=item $value = cf::db_get $family => $key
2006
2007	Returns a single value from the database
2008
2009	=item cf::db_put $family => $hashref
2010
2011	Stores the given family hashref into the database. Updates are delayed, if
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030		3597
2031	{	3598	{
2032	my $path = cf::localdir . "/database.pst";	3599	package cf::face;
2033		3600
2034	sub db_load() {	3601	our %HASH; # hash => idx
2035	$DB = stat $path ? Storable::retrieve $path : { };	3602	our @DATA; # dynamically-created facedata, only faceste 0 used
2036	}	3603	our @FOFS; # file offset, if > 0
		3604	our @SIZE; # size of face, in octets
		3605	our @META; # meta hash of face, if any
		3606	our $DATAFH; # facedata filehandle
2037		3607
2038	my $pid;	3608	# internal api, not finalised
		3609	sub set {
		3610	my ($name, $type, $data) = @_;
2039		3611
2040	sub db_save() {	3612	my $idx = cf::face::find $name;
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049		3613
2050	my $dirty;	3614	if ($idx) {
2051		3615	delete $HASH{cf::face::get_csum $idx};
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});
2060
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}
2065
2066	sub db_get($;$) {
2067	@_ >= 2
2068	? $DB->{$_[0]}{$_[1]}
2069	: ($DB->{$_[0]} ||= { })
2070	}
2071
2072	sub db_put($$;$) {
2073	if (@_ >= 3) {
2074	$DB->{$_[0]}{$_[1]} = $_[2];
2075	} else {	3616	} else {
2076	$DB->{$_[0]} = $_[1];	3617	$idx = cf::face::alloc $name;
2077	}
2078	db_dirty;
2079	}
2080
2081	cf::global->attach (
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	3618	}
		3619
		3620	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3621
		3622	cf::face::set_type $idx, $type;
		3623	cf::face::set_csum $idx, 0, $hash;
		3624
		3625	# we need to destroy the SV itself, not just modify it, as a running ix
		3626	# might hold a reference to it: "delete" achieves that.
		3627	delete $FOFS[0][$idx];
		3628	delete $DATA[0][$idx];
		3629	$DATA[0][$idx] = $data;
		3630	$SIZE[0][$idx] = length $data;
		3631	delete $META[$idx];
		3632	$HASH{$hash} = $idx;#d#
		3633
		3634	$idx
		3635	}
		3636
		3637	sub _get_data($$$) {
		3638	my ($idx, $set, $cb) = @_;
		3639
		3640	if (defined $DATA[$set][$idx]) {
		3641	$cb->($DATA[$set][$idx]);
		3642	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3643	my $size = $SIZE[$set][$idx];
		3644	my $buf;
		3645	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3646	if ($_[0] == $size) {
		3647	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3648	$cb->($buf);
		3649	} else {
		3650	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3651	}
		3652	};
		3653	} else {
		3654	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3655	}
		3656	}
		3657
		3658	# rather ineffient
		3659	sub cf::face::get_data($;$) {
		3660	my ($idx, $set) = @_;
		3661
		3662	_get_data $idx, $set, Coro::rouse_cb;
		3663	Coro::rouse_wait
		3664	}
		3665
		3666	sub cf::face::ix {
		3667	my ($ns, $set, $idx, $pri) = @_;
		3668
		3669	_get_data $idx, $set, sub {
		3670	$ns->ix_send ($idx, $pri, $_[0]);
		3671	};
		3672	}
		3673	}
		3674
		3675	sub load_facedata($) {
		3676	my ($path) = @_;
		3677
		3678	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3679
		3680	trace "loading facedata from $path\n";
		3681
		3682	my $facedata = decode_storable load_file "$path/faceinfo";
		3683
		3684	$facedata->{version} == 2
		3685	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3686
		3687	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3688	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3689
		3690	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3691
		3692	# BEGIN ATOMIC
		3693	# from here on, everything must be atomic - no thread switch allowed
		3694	my $t1 = EV::time;
		3695
		3696	{
		3697	my $faces = $facedata->{faceinfo};
		3698
		3699	for my $face (sort keys %$faces) {
		3700	my $info = $faces->{$face};
		3701	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3702
		3703	cf::face::set_visibility $idx, $info->{visibility};
		3704	cf::face::set_magicmap $idx, $info->{magicmap};
		3705	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3706	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3707	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3708	$cf::face::HASH{$info->{hash64}} = $idx;
		3709	delete $cf::face::META[$idx];
		3710	}
		3711
		3712	while (my ($face, $info) = each %$faces) {
		3713	next unless $info->{smooth};
		3714
		3715	my $idx = cf::face::find $face
		3716	or next;
		3717
		3718	if (my $smooth = cf::face::find $info->{smooth}) {
		3719	cf::face::set_smooth $idx, $smooth;
		3720	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3721	} else {
		3722	error "smooth face '$info->{smooth}' not found for face '$face'";
		3723	}
		3724	}
		3725	}
		3726
		3727	{
		3728	my $anims = $facedata->{animinfo};
		3729
		3730	while (my ($anim, $info) = each %$anims) {
		3731	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3732	}
		3733
		3734	cf::anim::invalidate_all; # d'oh
		3735	}
		3736
		3737	{
		3738	my $res = $facedata->{resource};
		3739
		3740	while (my ($name, $info) = each %$res) {
		3741	if (defined (my $type = $info->{type})) {
		3742	# TODO: different hash - must free and use new index, or cache ixface data queue
		3743	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3744
		3745	cf::face::set_type $idx, $type;
		3746	cf::face::set_csum $idx, 0, $info->{hash};
		3747	$cf::face::SIZE[0][$idx] = $info->{size};
		3748	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3749	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3750	$cf::face::HASH{$info->{hash}} = $idx;
		3751	} else {
		3752	# $RESOURCE{$name} = $info; # unused
		3753	}
		3754	}
		3755	}
		3756
		3757	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3758
		3759	# HACK to clear player env face cache, we need some signal framework
		3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
		3762
		3763	# END ATOMIC
		3764
		3765	cf::debug "facedata atomic update time ", EV::time - $t1;
		3766
		3767	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3768
		3769	aio_close $fh if $fh; # close old facedata
		3770
		3771	1
		3772	}
		3773
		3774	register_exticmd fx_want => sub {
		3775	my ($ns, $want) = @_;
		3776
		3777	while (my ($k, $v) = each %$want) {
		3778	$ns->fx_want ($k, $v);
		3779	}
		3780	};
		3781
		3782	sub load_resource_file($) {
		3783	my $guard = lock_acquire "load_resource_file";
		3784
		3785	my $status = load_resource_file_ $_[0];
		3786	get_slot 0.1, 100;
		3787	cf::arch::commit_load;
		3788
		3789	$status
		3790	}
		3791
		3792	sub reload_exp_table {
		3793	_reload_exp_table;
		3794
		3795	cf::face::set
		3796	"res/exp_table" => FT_RSRC,
		3797	JSON::XS->new->utf8->canonical->encode (
		3798	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
2086	);	3799	);
2087	}	3800	}
2088		3801
2089	#############################################################################	3802	sub reload_materials {
2090	# the server's main()	3803	_reload_materials;
		3804	}
2091		3805
2092	sub cfg_load {	3806	sub reload_regions {
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3807	# HACK to clear player env face cache, we need some signal framework
2094	or return;	3808	# for this (global event?)
		3809	%ext::player_env::MUSIC_FACE_CACHE = ();
2095		3810
2096	local $/;	3811	load_resource_file "$MAPDIR/regions"
2097	*CFG = YAML::Syck::Load <$fh>;	3812	or die "unable to load regions file\n";
2098		3813
		3814	for (cf::region::list) {
		3815	$_->{match} = qr/$_->{match}/
		3816	if exists $_->{match};
		3817	}
		3818	}
		3819
		3820	sub reload_facedata {
		3821	load_facedata $DATADIR
		3822	or die "unable to load facedata\n";
		3823	}
		3824
		3825	sub reload_archetypes {
		3826	load_resource_file "$DATADIR/archetypes"
		3827	or die "unable to load archetypes\n";
		3828
		3829	cf::face::set
		3830	"res/skill_info" => FT_RSRC,
		3831	JSON::XS->new->utf8->canonical->encode (
		3832	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3833	);
		3834
		3835	cf::face::set
		3836	"res/spell_paths" => FT_RSRC,
		3837	JSON::XS->new->utf8->canonical->encode (
		3838	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3839	);
		3840
		3841	# command completion
		3842	my @commands;
		3843
		3844	for (0..cf::arch::skillvec_size - 1) {
		3845	my $skill = cf::arch::skillvec $_;
		3846	my $name = $skill->name;
		3847	my $flags = cf::skill_flags $skill->subtype;
		3848
		3849	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3850	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3851	}
		3852
		3853	cf::client::set_command_face skill => \@commands;
		3854	}
		3855
		3856	sub reload_treasures {
		3857	load_resource_file "$DATADIR/treasures"
		3858	or die "unable to load treasurelists\n";
		3859	}
		3860
		3861	sub reload_sound {
		3862	trace "loading sound config from $DATADIR/sound\n";
		3863
		3864	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3865
		3866	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3867	my $sound = $soundconf->{compat}[$_]
		3868	or next;
		3869
		3870	my $face = cf::face::find "sound/$sound->[1]";
		3871	cf::sound::set $sound->[0] => $face;
		3872	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3873	}
		3874
		3875	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3876	my $face = cf::face::find "sound/$v";
		3877	cf::sound::set $k => $face;
		3878	}
		3879	}
		3880
		3881	sub reload_resources {
		3882	trace "reloading resource files...\n";
		3883
		3884	reload_materials;
		3885	reload_facedata;
		3886	reload_exp_table;
		3887	reload_sound;
		3888	reload_archetypes;
		3889	reload_regions;
		3890	reload_treasures;
		3891
		3892	trace "finished reloading resource files\n";
		3893	}
		3894
		3895	sub reload_config {
		3896	trace "reloading config file...\n";
		3897
		3898	my $config = load_file "$CONFDIR/config";
		3899	utf8::decode $config;
		3900	*CFG = decode_yaml $config;
		3901
2099	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3902	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2100		3903
2101	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3904	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2102	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3905	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2103		3906
2104	if (exists $CFG{mlockall}) {	3907	if (exists $CFG{mlockall}) {
…		…
2108	};	3911	};
2109	warn $@ if $@;	3912	warn $@ if $@;
2110	}	3913	}
2111	}	3914	}
2112		3915
		3916	sub pidfile() {
		3917	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3918	or die "$PIDFILE: $!";
		3919	flock $fh, &Fcntl::LOCK_EX
		3920	or die "$PIDFILE: flock: $!";
		3921	$fh
		3922	}
		3923
		3924	# make sure only one server instance is running at any one time
		3925	sub atomic {
		3926	my $fh = pidfile;
		3927
		3928	my $pid = <$fh>;
		3929	kill 9, $pid if $pid > 0;
		3930
		3931	seek $fh, 0, 0;
		3932	print $fh $$;
		3933	}
		3934
		3935	sub main_loop {
		3936	trace "EV::run starting\n";
		3937	if (1) {
		3938	EV::run;
		3939	}
		3940	trace "EV::run returned\n";
		3941	goto &main_loop unless $REALLY_UNLOOP;
		3942	}
		3943
2113	sub main {	3944	sub main {
		3945	cf::init_globals; # initialise logging
		3946
		3947	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3948	LOG llevInfo, "Copyright (C) 2017-2018 Marc Alexander Lehmann / the Deliantra team.";
		3949	LOG llevInfo, "Copyright (C) 2005-2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3950	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3951	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3952
		3953	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3954
2114	# we must not ever block the main coroutine	3955	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3956	$Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3957	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2117	async { Event::one_event };	3958	(async {
		3959	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3960	EV::run EV::RUN_ONCE;
		3961	})->prio (Coro::PRIO_MAX);
2118	};	3962	};
2119		3963
2120	cfg_load;	3964	evthread_start IO::AIO::poll_fileno;
2121	db_load;	3965
		3966	cf::sync_job {
		3967	cf::incloader::init ();
		3968
		3969	db_init;
		3970
		3971	cf::init_anim;
		3972	cf::init_attackmess;
		3973	cf::init_dynamic;
		3974
		3975	cf::load_settings;
		3976
		3977	reload_resources;
		3978	reload_config;
		3979
		3980	cf::init_uuid;
		3981	cf::init_signals;
		3982	cf::init_skills;
		3983
		3984	cf::init_beforeplay;
		3985
		3986	atomic;
		3987
2122	load_extensions;	3988	load_extensions;
2123	Event::loop;	3989
		3990	utime time, time, $RUNTIMEFILE;
		3991
		3992	# no (long-running) fork's whatsoever before this point(!)
		3993	use POSIX ();
		3994	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3995
		3996	cf::_post_init 0;
		3997	};
		3998
		3999	cf::object::thawer::errors_are_fatal 0;
		4000	info "parse errors in files are no longer fatal from this point on.\n";
		4001
		4002	AE::postpone {
		4003	undef &main; # free gobs of memory :)
		4004	};
		4005
		4006	goto &main_loop;
2124	}	4007	}
2125		4008
2126	#############################################################################	4009	#############################################################################
2127	# initialisation	4010	# initialisation and cleanup
2128		4011
		4012	# install some emergency cleanup handlers
		4013	BEGIN {
		4014	our %SIGWATCHER = ();
		4015	for my $signal (qw(INT HUP TERM)) {
		4016	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		4017	cf::cleanup "SIG$signal";
		4018	};
		4019	}
		4020	}
		4021
		4022	sub write_runtime_sync {
		4023	my $t0 = AE::time;
		4024
		4025	# first touch the runtime file to show we are still running:
		4026	# the fsync below can take a very very long time.
		4027
		4028	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4029
		4030	my $guard = cf::lock_acquire "write_runtime";
		4031
		4032	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4033	or return;
		4034
		4035	my $value = $cf::RUNTIME + 90 + 10;
		4036	# 10 is the runtime save interval, for a monotonic clock
		4037	# 60 allows for the watchdog to kill the server.
		4038
		4039	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4040	and return;
		4041
		4042	# always fsync - this file is important
		4043	aio_fsync $fh
		4044	and return;
		4045
		4046	# touch it again to show we are up-to-date
		4047	aio_utime $fh, undef, undef;
		4048
		4049	close $fh
		4050	or return;
		4051
		4052	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4053	and return;
		4054
		4055	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4056
		4057	1
		4058	}
		4059
		4060	our $uuid_lock;
		4061	our $uuid_skip;
		4062
		4063	sub write_uuid_sync($) {
		4064	$uuid_skip ||= $_[0];
		4065
		4066	return if $uuid_lock;
		4067	local $uuid_lock = 1;
		4068
		4069	my $uuid = "$LOCALDIR/uuid";
		4070
		4071	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4072	or return;
		4073
		4074	my $value = uuid_seq uuid_cur;
		4075
		4076	unless ($value) {
		4077	info "cowardly refusing to write zero uuid value!\n";
		4078	return;
		4079	}
		4080
		4081	my $value = uuid_str $value + $uuid_skip;
		4082	$uuid_skip = 0;
		4083
		4084	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4085	and return;
		4086
		4087	# always fsync - this file is important
		4088	aio_fsync $fh
		4089	and return;
		4090
		4091	close $fh
		4092	or return;
		4093
		4094	aio_rename "$uuid~", $uuid
		4095	and return;
		4096
		4097	trace "uuid file written ($value).\n";
		4098
		4099	1
		4100
		4101	}
		4102
		4103	sub write_uuid($$) {
		4104	my ($skip, $sync) = @_;
		4105
		4106	$sync ? write_uuid_sync $skip
		4107	: async { write_uuid_sync $skip };
		4108	}
		4109
		4110	sub emergency_save() {
		4111	my $freeze_guard = cf::freeze_mainloop;
		4112
		4113	info "emergency_perl_save: enter\n";
		4114
		4115	# this is a trade-off: we want to be very quick here, so
		4116	# save all maps without fsync, and later call a global sync
		4117	# (which in turn might be very very slow)
		4118	local $USE_FSYNC = 0;
		4119
		4120	cf::sync_job {
		4121	cf::write_runtime_sync; # external watchdog should not bark
		4122
		4123	# use a peculiar iteration method to avoid tripping on perl
		4124	# refcount bugs in for. also avoids problems with players
		4125	# and maps saved/destroyed asynchronously.
		4126	info "emergency_perl_save: begin player save\n";
		4127	for my $login (keys %cf::PLAYER) {
		4128	my $pl = $cf::PLAYER{$login} or next;
		4129	$pl->valid or next;
		4130	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4131	$pl->save;
		4132	}
		4133	info "emergency_perl_save: end player save\n";
		4134
		4135	cf::write_runtime_sync; # external watchdog should not bark
		4136
		4137	info "emergency_perl_save: begin map save\n";
		4138	for my $path (keys %cf::MAP) {
		4139	my $map = $cf::MAP{$path} or next;
		4140	$map->valid or next;
		4141	$map->save;
		4142	}
		4143	info "emergency_perl_save: end map save\n";
		4144
		4145	cf::write_runtime_sync; # external watchdog should not bark
		4146
		4147	info "emergency_perl_save: begin database checkpoint\n";
		4148	BDB::db_env_txn_checkpoint $DB_ENV;
		4149	info "emergency_perl_save: end database checkpoint\n";
		4150
		4151	info "emergency_perl_save: begin write uuid\n";
		4152	write_uuid_sync 1;
		4153	info "emergency_perl_save: end write uuid\n";
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
		4156
		4157	trace "emergency_perl_save: syncing database to disk";
		4158	BDB::db_env_txn_checkpoint $DB_ENV;
		4159
		4160	info "emergency_perl_save: starting sync\n";
		4161	IO::AIO::aio_sync sub {
		4162	info "emergency_perl_save: finished sync\n";
		4163	};
		4164
		4165	cf::write_runtime_sync; # external watchdog should not bark
		4166
		4167	trace "emergency_perl_save: flushing outstanding aio requests";
		4168	while (IO::AIO::nreqs || BDB::nreqs) {
		4169	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4170	}
		4171
		4172	cf::write_runtime_sync; # external watchdog should not bark
		4173	};
		4174
		4175	info "emergency_perl_save: leave\n";
		4176	}
		4177
		4178	sub post_cleanup {
		4179	my ($make_core) = @_;
		4180
		4181	IO::AIO::flush;
		4182
		4183	error Carp::longmess "post_cleanup backtrace"
		4184	if $make_core;
		4185
		4186	my $fh = pidfile;
		4187	unlink $PIDFILE if <$fh> == $$;
		4188	}
		4189
		4190	# a safer delete_package, copied from Symbol
		4191	sub clear_package($) {
		4192	my $pkg = shift;
		4193
		4194	# expand to full symbol table name if needed
		4195	unless ($pkg =~ /^main::.*::$/) {
		4196	$pkg = "main$pkg" if $pkg =~ /^::/;
		4197	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4198	$pkg .= '::' unless $pkg =~ /::$/;
		4199	}
		4200
		4201	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4202	my $stem_symtab = *{$stem}{HASH};
		4203
		4204	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4205	or return;
		4206
		4207	# clear all symbols
		4208	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4209	for my $name (keys %$leaf_symtab) {
		4210	_gv_clear *{"$pkg$name"};
		4211	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4212	}
		4213	}
		4214
2129	sub reload() {	4215	sub do_reload_perl() {
2130	# can/must only be called in main	4216	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	4217	unless (in_main) {
2132	warn "can only reload from main coroutine\n";	4218	error "can only reload from main coroutine";
2133	return;	4219	return;
2134	}	4220	}
2135		4221
2136	warn "reloading...";	4222	return if $RELOAD++;
2137		4223
2138	my $guard = freeze_mainloop;	4224	my $t1 = AE::time;
		4225
		4226	while ($RELOAD) {
		4227	cf::get_slot 0.1, -1, "reload_perl";
		4228	info "perl_reload: reloading...";
		4229
		4230	trace "perl_reload: entering sync_job";
		4231
		4232	cf::sync_job {
2139	cf::emergency_save;	4233	#cf::emergency_save;
2140		4234
2141	eval {	4235	trace "perl_reload: cancelling all extension coros";
2142	# if anything goes wrong in here, we should simply crash as we already saved
2143
2144	# cancel all watchers
2145	for (Event::all_watchers) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;
2147	}
2148
2149	# cancel all extension coros
2150	$_->cancel for values %EXT_CORO;	4236	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();	4237	%EXT_CORO = ();
2152		4238
2153	# unload all extensions	4239	trace "perl_reload: removing commands";
2154	for (@exts) {	4240	%COMMAND = ();
2155	warn "unloading <$_>";
2156	unload_extension $_;
2157	}
2158		4241
2159	# unload all modules loaded from $LIBDIR	4242	trace "perl_reload: removing ext/exti commands";
2160	while (my ($k, $v) = each %INC) {	4243	%EXTCMD = ();
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4244	%EXTICMD = ();
2162		4245
2163	warn "removing <$k>";	4246	trace "perl_reload: unloading/nuking all extensions";
2164	delete $INC{$k};	4247	for my $pkg (@EXTS) {
		4248	trace "... unloading $pkg";
2165		4249
2166	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;
2168
2169	if (my $cb = $k->can ("unload_module")) {	4250	if (my $cb = $pkg->can ("unload")) {
		4251	eval {
2170	$cb->();	4252	$cb->($pkg);
		4253	1
		4254	} or error "$pkg unloaded, but with errors: $@";
		4255	}
		4256
		4257	trace "... clearing $pkg";
		4258	clear_package $pkg;
2171	}	4259	}
2172		4260
2173	Symbol::delete_package $k;	4261	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4262	while (my ($k, $v) = each %INC) {
		4263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4264
		4265	trace "... unloading $k";
		4266	delete $INC{$k};
		4267
		4268	$k =~ s/\.pm$//;
		4269	$k =~ s/\//::/g;
		4270
		4271	if (my $cb = $k->can ("unload_module")) {
		4272	$cb->();
		4273	}
		4274
		4275	clear_package $k;
2174	}	4276	}
2175		4277
2176	# sync database to disk
2177	cf::db_sync;
2178	IO::AIO::flush;
2179
2180	# get rid of safe::, as good as possible	4278	trace "perl_reload: getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	4279	clear_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4280	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		4281
2184	# remove register_script_function callbacks	4282	trace "perl_reload: unloading cf.pm \"a bit\"";
2185	# TODO
2186
2187	# unload cf.pm "a bit"
2188	delete $INC{"cf.pm"};	4283	delete $INC{"cf.pm"};
		4284	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2189		4285
2190	# don't, removes xs symbols, too,	4286	# don't, removes xs symbols, too,
2191	# and global variables created in xs	4287	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	4288	#clear_package __PACKAGE__;
2193		4289
2194	# reload cf.pm	4290	info "perl_reload: unload completed, starting to reload now";
2195	warn "reloading cf.pm";	4291
		4292	trace "perl_reload: reloading cf.pm";
2196	require cf;	4293	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4294	cf::_connect_to_perl_1;
2198		4295
2199	# load config and database again	4296	trace "perl_reload: loading config and database again";
2200	cf::cfg_load;	4297	cf::reload_config;
2201	cf::db_load;
2202		4298
2203	# load extensions	4299	trace "perl_reload: loading extensions";
2204	warn "load extensions";
2205	cf::load_extensions;	4300	cf::load_extensions;
2206		4301
2207	# reattach attachments to objects	4302	if ($REATTACH_ON_RELOAD) {
2208	warn "reattach";	4303	trace "perl_reload: reattaching attachments to objects/players";
2209	_global_reattach;	4304	_global_reattach; # objects, sockets
		4305	trace "perl_reload: reattaching attachments to maps";
2210	reattach $_ for values %MAP;	4306	reattach $_ for values %MAP;
		4307	trace "perl_reload: reattaching attachments to players";
		4308	reattach $_ for values %PLAYER;
		4309	}
		4310
		4311	cf::_post_init 1;
		4312
		4313	trace "perl_reload: leaving sync_job";
		4314
		4315	1
		4316	} or do {
		4317	error $@;
		4318	cf::cleanup "perl_reload: error, exiting.";
		4319	};
		4320
		4321	--$RELOAD;
		4322	}
		4323
		4324	$t1 = AE::time - $t1;
		4325	info "perl_reload: completed in ${t1}s\n";
		4326	};
		4327
		4328	our $RELOAD_WATCHER; # used only during reload
		4329
		4330	sub reload_perl() {
		4331	# doing reload synchronously and two reloads happen back-to-back,
		4332	# coro crashes during coro_state_free->destroy here.
		4333
		4334	$RELOAD_WATCHER ||= cf::async {
		4335	Coro::AIO::aio_wait cache_extensions;
		4336
		4337	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4338	do_reload_perl;
		4339	undef $RELOAD_WATCHER;
		4340	};
2211	};	4341	};
2212
2213	if ($@) {
2214	warn $@;
2215	warn "error while reloading, exiting.";
2216	exit 1;
2217	}
2218
2219	warn "reloaded successfully";
2220	};
2221
2222	#############################################################################
2223
2224	unless ($LINK_MAP) {
2225	$LINK_MAP = cf::map::new;
2226
2227	$LINK_MAP->width (41);
2228	$LINK_MAP->height (41);
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,
2237	cb => sub {
2238	$_[0]->w->cancel;
2239
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});
2258
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	4342	}
2264
2265	register "<global>", __PACKAGE__;
2266		4343
2267	register_command "reload" => sub {	4344	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	4345	my ($who, $arg) = @_;
2269		4346
2270	if ($who->flag (FLAG_WIZ)) {	4347	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	4348	$who->message ("reloading server.");
		4349	async {
		4350	$Coro::current->{desc} = "perl_reload";
		4351	reload_perl;
		4352	};
2274	}	4353	}
2275	};	4354	};
2276		4355
2277	unshift @INC, $LIBDIR;	4356	#############################################################################
2278		4357
2279	$TICK_WATCHER = Event->timer (	4358	my $bug_warning = 0;
2280	reentrant => 0,
2281	prio => 0,
2282	at => $NEXT_TICK || $TICK,
2283	data => WF_AUTOCANCEL,
2284	cb => sub {
2285	cf::server_tick; # one server iteration
2286	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;
2288		4359
2289	# if we are delayed by four ticks or more, skip them all	4360	sub wait_for_tick() {
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4361	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2291		4362
2292	$TICK_WATCHER->at ($NEXT_TICK);	4363	$WAIT_FOR_TICK->wait;
2293	$TICK_WATCHER->start;	4364	}
		4365
		4366	sub wait_for_tick_begin() {
		4367	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4368
		4369	my $signal = new Coro::Signal;
		4370	push @WAIT_FOR_TICK_BEGIN, $signal;
		4371	$signal->wait;
		4372	}
		4373
		4374	sub tick {
		4375	if ($Coro::current != $Coro::main) {
		4376	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4377	unless ++$bug_warning > 10;
		4378	return;
2294	},	4379	}
2295	);
2296		4380
2297	IO::AIO::max_poll_time $TICK * 0.2;	4381	cf::one_tick; # one server iteration
2298		4382
2299	Event->io (	4383	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2300	fd => IO::AIO::poll_fileno,
2301	poll => 'r',
2302	prio => 5,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306		4384
2307	Event->timer (	4385	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2308	data => WF_AUTOCANCEL,	4386	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2309	after => 0,	4387	Coro::async_pool {
2310	interval => 10,	4388	$Coro::current->{desc} = "runtime saver";
2311	cb => sub {
2312	(Coro::unblock_sub {
2313	write_runtime	4389	write_runtime_sync
2314	or warn "ERROR: unable to write runtime file: $!";	4390	or error "ERROR: unable to write runtime file: $!";
2315	})->();	4391	};
2316	},	4392	}
2317	);	4393
		4394	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4395	$sig->send;
		4396	}
		4397	$WAIT_FOR_TICK->broadcast;
		4398
		4399	$LOAD = ($NOW - $TICK_START) / $TICK;
		4400	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4401
		4402	if (0) {
		4403	if ($NEXT_TICK) {
		4404	my $jitter = $TICK_START - $NEXT_TICK;
		4405	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4406	debug "jitter $JITTER\n";#d#
		4407	}
		4408	}
		4409	}
		4410
		4411	{
		4412	# configure BDB
		4413	info "initialising database";
		4414
		4415	BDB::min_parallel 16;
		4416	BDB::max_poll_reqs $TICK * 0.1;
		4417	#$AnyEvent::BDB::WATCHER->priority (1);
		4418
		4419	unless ($DB_ENV) {
		4420	$DB_ENV = BDB::db_env_create;
		4421	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4422	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4423	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4424	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4425	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4426
		4427	cf::sync_job {
		4428	eval {
		4429	BDB::db_env_open
		4430	$DB_ENV,
		4431	$BDBDIR,
		4432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4434	0666;
		4435
		4436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4437	};
		4438
		4439	cf::cleanup "db_env_open(db): $@" if $@;
		4440	};
		4441	}
		4442
		4443	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4444	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4445	};
		4446	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4447	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4448	};
		4449	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4450	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4451	};
		4452
		4453	info "database initialised";
		4454	}
		4455
		4456	{
		4457	# configure IO::AIO
		4458
		4459	info "initialising aio";
		4460	IO::AIO::min_parallel 8;
		4461	IO::AIO::max_poll_time $TICK * 0.1;
		4462	undef $AnyEvent::AIO::WATCHER;
		4463	info "aio initialised";
		4464	}
		4465
		4466	our $_log_backtrace;
		4467	our $_log_backtrace_last;
		4468
		4469	sub _log_backtrace {
		4470	my ($msg, @addr) = @_;
		4471
		4472	$msg =~ s/\n$//;
		4473
		4474	if ($_log_backtrace_last eq $msg) {
		4475	LOG llevInfo, "[ABT] $msg\n";
		4476	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4477	# limit the # of concurrent backtraces
		4478	} elsif ($_log_backtrace < 2) {
		4479	$_log_backtrace_last = $msg;
		4480	++$_log_backtrace;
		4481	my $perl_bt = Carp::longmess $msg;
		4482	async {
		4483	$Coro::current->{desc} = "abt $msg";
		4484
		4485	my @bt = fork_call {
		4486	@addr = map { sprintf "%x", $_ } @addr;
		4487	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4488	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4489	or die "addr2line: $!";
		4490
		4491	my @funcs;
		4492	my @res = <$fh>;
		4493	chomp for @res;
		4494	while (@res) {
		4495	my ($func, $line) = splice @res, 0, 2, ();
		4496	push @funcs, "[$func] $line";
		4497	}
		4498
		4499	@funcs
		4500	};
		4501
		4502	LOG llevInfo, "[ABT] $perl_bt\n";
		4503	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4504	LOG llevInfo, "[ABT] $_\n" for @bt;
		4505	--$_log_backtrace;
		4506	};
		4507	} else {
		4508	LOG llevInfo, "[ABT] $msg\n";
		4509	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4510	}
		4511	}
		4512
		4513	# load additional modules
		4514	require "cf/$_.pm" for @EXTRA_MODULES;
		4515	cf::_connect_to_perl_2;
2318		4516
2319	END { cf::emergency_save }	4517	END { cf::emergency_save }
2320		4518
2321	1	4519	1
2322		4520

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